z1 := (2,6)(4,11)(7,12)(8,15)(9,17)(10,21)(13,25)(14,28)(18,35)(19,22)(20,27)
     (24,43)(26,46)(30,49)(31,50)(33,55)(36,59)(37,60)(39,62)(40,64)(41,65)
     (45,69)(47,73)(51,77)(54,80)(56,85)(57,84)(58,87)(61,91)(66,99)(67,98)
     (70,103)(72,105)(74,108)(78,113)(79,115)(81,118)(83,121)(86,126)(89,128)
     (90,129)(92,135)(94,137)(95,138)(96,140)(100,147)(101,148)(104,152)(107,
     154)(109,160)(110,157)(111,159)(112,163)(117,171)(119,175)(122,181)(123,
     180)(124,178)(125,185)(130,191)(133,194)(136,199)(141,206)(142,205)(143,
     209)(145,212)(146,204)(149,217)(151,220)(156,225)(161,233)(162,235)(164,
     239)(165,237)(166,238)(168,244)(170,247)(172,251)(173,249)(174,253)(177,
     257)(179,261)(182,267)(183,266)(184,260)(186,271)(187,270)(188,273)(192,
     278)(193,280)(195,283)(196,285)(197,287)(198,282)(201,291)(203,294)(207,
     302)(208,301)(211,305)(213,308)(214,298)(216,311)(218,314)(221,319)(222,
     318)(223,322)(226,328)(227,325)(228,327)(230,333)(234,326)(236,342)(240,
     350)(241,347)(242,349)(243,353)(245,358)(246,357)(250,363)(252,367)(254,
     369)(259,373)(262,379)(263,378)(264,376)(265,384)(268,389)(269,390)(272,
     395)(275,397)(276,399)(277,402)(281,409)(284,414)(289,324)(290,419)(292,
     421)(293,423)(295,425)(296,377)(297,428)(299,431)(300,424)(303,438)(307,
     441)(309,444)(312,448)(313,447)(315,454)(316,453)(317,345)(320,461)(321,
     460)(323,465)(330,471)(331,473)(332,476)(335,480)(336,482)(339,467)(340,
     487)(341,469)(343,491)(344,457)(346,495)(348,490)(351,503)(352,505)(354,
     508)(356,511)(359,516)(362,518)(364,521)(365,520)(366,524)(368,528)(370,
     532)(375,535)(380,543)(381,542)(382,545)(383,538)(385,551)(386,550)(387,
     548)(392,560)(393,558)(394,564)(403,575)(404,466)(405,574)(407,580)(410,
     584)(411,586)(412,588)(413,583)(416,594)(417,596)(418,472)(420,601)(422,
     603)(426,607)(427,540)(430,610)(432,615)(433,614)(434,618)(435,539)(437,
     613)(439,625)(443,628)(446,633)(450,636)(451,638)(455,645)(456,501)(458,
     494)(459,649)(462,654)(468,660)(483,675)(484,672)(485,674)(486,678)(488,
     683)(489,682)(492,687)(493,648)(496,694)(497,691)(498,693)(499,646)(500,
     699)(502,702)(504,692)(507,710)(509,668)(513,717)(514,715)(515,721)(517,
     724)(522,728)(523,729)(525,733)(526,731)(530,737)(531,740)(533,744)(537,
     747)(541,752)(544,757)(546,761)(547,760)(549,765)(552,771)(553,770)(554,
     773)(555,764)(556,776)(563,780)(566,786)(571,790)(573,791)(576,798)(577,
     795)(578,797)(579,801)(581,805)(582,804)(585,809)(589,813)(590,815)(592,
     812)(593,819)(599,822)(602,826)(605,830)(606,832)(608,836)(612,839)(616,
     847)(617,846)(619,852)(620,851)(621,854)(623,857)(624,843)(626,862)(629,
     865)(640,871)(641,709)(643,872)(644,870)(647,877)(650,883)(651,882)(652,
     880)(653,888)(655,891)(658,892)(659,893)(662,897)(663,898)(671,903)(676,
     910)(677,911)(679,914)(680,895)(681,917)(684,922)(685,923)(686,924)(688,
     927)(689,929)(690,930)(695,941)(696,938)(697,940)(698,944)(700,948)(701,
     947)(704,951)(705,952)(706,934)(707,957)(708,936)(711,960)(712,963)(714,
     823)(719,969)(720,966)(722,973)(723,972)(726,978)(727,979)(730,985)(732,
     987)(734,991)(735,992)(736,994)(742,1001)(745,1006)(748,1012)(749,1011)
     (750,1014)(751,1015)(753,1020)(754,1019)(755,1017)(758,1027)(759,1010)
     (762,1033)(763,1034)(767,1039)(768,1037)(769,1044)(772,1049)(775,1052)
     (777,1057)(778,1056)(781,1061)(783,1064)(787,1068)(789,1070)(793,1075)
     (794,1076)(796,1074)(799,1084)(800,1086)(802,1088)(806,1092)(807,1093)
     (808,1094)(811,1099)(814,1104)(816,1107)(817,1108)(818,1110)(824,1117)
     (825,1116)(827,1122)(828,1120)(829,1125)(831,1129)(833,1132)(835,1131)
     (837,1138)(841,1142)(842,1145)(844,1148)(845,1141)(848,1153)(849,1127)
     (850,1155)(853,1160)(855,1164)(856,1163)(859,1168)(861,1172)(863,1175)
     (866,1180)(867,1181)(873,1190)(874,1189)(875,1192)(876,1187)(878,1196)
     (879,1195)(881,1200)(884,1206)(885,1205)(886,1208)(887,1199)(890,1212)
     (899,1226)(900,1223)(901,1225)(902,1228)(904,1229)(905,1230)(907,1232)
     (909,1234)(912,1219)(913,1238)(916,1221)(918,1246)(919,1245)(920,1243)
     (921,1250)(925,1254)(928,1105)(931,1262)(932,1259)(933,1261)(935,1267)
     (937,1270)(939,1260)(942,1277)(943,1279)(945,1281)(946,1282)(949,1286)
     (953,1290)(956,1293)(959,1297)(962,1301)(964,1303)(965,1304)(970,1310)
     (971,1311)(974,1316)(975,1317)(977,1320)(980,1325)(981,1323)(983,1328)
     (984,1322)(986,1332)(989,1334)(990,1336)(995,1343)(997,1345)(998,1347)
     (1000,1349)(1002,1351)(1003,1350)(1004,1354)(1008,1307)(1009,1359)(1013,
     1362)(1016,1366)(1018,1369)(1022,1374)(1023,1376)(1024,1368)(1025,1379)
     (1029,1383)(1030,1178)(1031,1385)(1032,1158)(1035,1392)(1036,1391)(1043,
     1395)(1045,1402)(1046,1401)(1047,1399)(1048,1405)(1051,1390)(1055,1414)
     (1058,1419)(1062,1423)(1063,1422)(1065,1427)(1069,1431)(1077,1442)(1078,
     1439)(1079,1441)(1080,1218)(1082,1437)(1083,1449)(1085,1440)(1089,1434)
     (1091,1455)(1095,1459)(1097,1458)(1098,1462)(1101,1389)(1102,1466)(1103,
     1463)(1106,1469)(1109,1475)(1113,1479)(1114,1481)(1118,1486)(1119,1487)
     (1121,1489)(1123,1493)(1124,1494)(1128,1498)(1130,1501)(1134,1506)(1136,
     1509)(1137,1365)(1139,1514)(1146,1520)(1147,1519)(1150,1516)(1151,1524)
     (1152,1523)(1154,1257)(1157,1530)(1159,1534)(1161,1537)(1165,1544)(1166,
     1518)(1170,1549)(1173,1554)(1174,1553)(1176,1556)(1177,1552)(1182,1562)
     (1183,1561)(1186,1563)(1188,1566)(1191,1315)(1193,1571)(1194,1572)(1197,
     1575)(1198,1576)(1201,1580)(1202,1352)(1203,1579)(1204,1585)(1207,1589)
     (1210,1592)(1213,1596)(1222,1603)(1227,1610)(1231,1435)(1233,1615)(1235,
     1617)(1236,1618)(1239,1622)(1240,1620)(1241,1624)(1244,1628)(1248,1633)
     (1249,1627)(1251,1635)(1253,1636)(1258,1639)(1264,1642)(1265,1644)(1266,
     1647)(1268,1652)(1269,1651)(1271,1658)(1272,1655)(1273,1657)(1274,1550)
     (1275,1663)(1276,1640)(1278,1656)(1280,1669)(1283,1675)(1284,1674)(1285,
     1672)(1291,1681)(1292,1683)(1295,1649)(1299,1690)(1302,1692)(1306,1696)
     (1309,1695)(1312,1703)(1313,1702)(1314,1700)(1318,1708)(1319,1709)(1324,
     1711)(1326,1715)(1327,1717)(1330,1720)(1331,1471)(1333,1723)(1337,1725)
     (1338,1728)(1340,1722)(1342,1733)(1346,1738)(1353,1744)(1355,1584)(1356,
     1747)(1360,1749)(1361,1499)(1363,1751)(1364,1752)(1367,1757)(1370,1763)
     (1371,1762)(1372,1760)(1378,1771)(1380,1776)(1381,1775)(1386,1782)(1387,
     1781)(1388,1533)(1393,1790)(1400,1795)(1404,1794)(1407,1803)(1410,1754)
     (1411,1787)(1412,1810)(1415,1815)(1416,1814)(1417,1813)(1424,1823)(1425,
     1824)(1430,1830)(1438,1836)(1444,1844)(1445,1846)(1447,1850)(1450,1840)
     (1451,1842)(1452,1833)(1453,1852)(1454,1598)(1456,1616)(1457,1853)(1460,
     1858)(1461,1860)(1465,1789)(1467,1865)(1468,1864)(1472,1869)(1473,1871)
     (1476,1785)(1478,1877)(1480,1878)(1482,1880)(1484,1881)(1485,1701)(1488,
     1686)(1490,1887)(1491,1748)(1492,1890)(1497,1895)(1500,1750)(1502,1897)
     (1503,1731)(1505,1896)(1507,1904)(1508,1903)(1511,1786)(1521,1908)(1522,
     1909)(1526,1913)(1528,1799)(1531,1919)(1535,1923)(1536,1922)(1538,1928)
     (1539,1927)(1540,1732)(1543,1926)(1545,1710)(1546,1770)(1551,1816)(1557,
     1937)(1560,1942)(1565,1948)(1567,1950)(1568,1949)(1569,1925)(1570,1946)
     (1573,1956)(1574,1955)(1577,1961)(1578,1960)(1582,1965)(1583,1967)(1586,
     1973)(1587,1972)(1588,1970)(1591,1687)(1597,1982)(1604,1985)(1605,1987)
     (1609,1990)(1611,1986)(1613,1991)(1614,1992)(1619,1994)(1621,1996)(1625,
     2000)(1629,2006)(1630,2005)(1631,2003)(1637,2011)(1638,2010)(1643,2013)
     (1648,1800)(1650,2021)(1653,2025)(1654,2026)(1660,2034)(1661,2036)(1662,
     2039)(1664,1718)(1665,2042)(1666,2030)(1667,2043)(1668,2032)(1670,2046)
     (1671,2044)(1673,2050)(1676,2055)(1678,2049)(1684,1980)(1688,2065)(1691,
     2069)(1693,2071)(1699,2076)(1704,2081)(1705,2082)(1706,2078)(1707,2085)
     (1712,2091)(1713,2089)(1721,2097)(1726,2101)(1734,2108)(1735,2107)(1739,
     1921)(1742,2114)(1743,2116)(1746,2120)(1753,2123)(1756,2122)(1758,2127)
     (1759,1875)(1761,2130)(1764,2135)(1765,2134)(1767,2129)(1774,2141)(1777,
     2040)(1780,1832)(1784,2148)(1796,2133)(1797,2156)(1798,2155)(1804,2161)
     (1806,2162)(1808,1932)(1809,1855)(1812,1873)(1817,2166)(1820,2169)(1825,
     2145)(1831,2174)(1834,1993)(1835,1983)(1837,2179)(1838,2176)(1839,2178)
     (1845,2177)(1849,2186)(1851,2189)(1854,2191)(1857,2190)(1859,2196)(1863,
     2197)(1870,2201)(1872,2202)(1883,2080)(1884,2079)(1885,2207)(1886,2211)
     (1889,2214)(1891,2217)(1892,2215)(1898,2223)(1899,2224)(1901,2225)(1905,
     1968)(1910,2221)(1914,2234)(1916,1962)(1920,2238)(1924,2241)(1933,2244)
     (1938,2017)(1939,2248)(1943,2252)(1944,2250)(1945,2253)(1951,2242)(1953,
     2255)(1954,2260)(1958,2264)(1959,2266)(1963,2087)(1969,2273)(1971,2276)
     (1975,2281)(1976,2283)(1977,2275)(1978,2284)(1984,2289)(1997,2300)(2001,
     2306)(2004,2308)(2007,2314)(2008,2313)(2009,2316)(2014,2323)(2018,2328)
     (2019,2205)(2020,2331)(2022,2336)(2023,2335)(2024,2333)(2027,2341)(2028,
     2338)(2029,2340)(2031,2346)(2035,2339)(2041,2095)(2045,2357)(2051,2366)
     (2052,2365)(2053,2363)(2063,2376)(2064,2378)(2066,2382)(2067,2381)(2072,
     2385)(2073,2386)(2084,2391)(2086,2393)(2088,2395)(2090,2239)(2092,2398)
     (2102,2397)(2104,2405)(2105,2406)(2106,2203)(2110,2407)(2115,2409)(2117,
     2411)(2118,2212)(2121,2147)(2124,2416)(2125,2417)(2126,2164)(2128,2420)
     (2131,2422)(2132,2421)(2136,2428)(2139,2383)(2142,2431)(2143,2353)(2150,
     2437)(2153,2441)(2157,2443)(2158,2426)(2159,2414)(2163,2419)(2170,2451)
     (2175,2455)(2180,2462)(2181,2459)(2182,2461)(2184,2466)(2192,2474)(2193,
     2475)(2194,2476)(2198,2472)(2200,2481)(2204,2484)(2209,2483)(2216,2492)
     (2219,2495)(2222,2454)(2226,2502)(2227,2272)(2228,2505)(2230,2508)(2232,
     2511)(2233,2512)(2235,2515)(2237,2516)(2245,2524)(2247,2526)(2249,2530)
     (2251,2533)(2256,2478)(2261,2539)(2262,2541)(2267,2547)(2268,2513)(2269,
     2548)(2270,2550)(2274,2554)(2277,2560)(2278,2559)(2279,2557)(2285,2568)
     (2286,2567)(2290,2573)(2291,2571)(2292,2572)(2293,2577)(2294,2579)(2295,
     2581)(2298,2583)(2299,2570)(2301,2587)(2307,2590)(2309,2593)(2310,2592)
     (2311,2591)(2312,2597)(2315,2601)(2317,2604)(2320,2603)(2322,2608)(2324,
     2614)(2325,2611)(2326,2613)(2327,2617)(2330,2621)(2332,2624)(2334,2626)
     (2337,2630)(2342,2641)(2343,2638)(2344,2640)(2345,2644)(2348,2648)(2350,
     2634)(2351,2651)(2352,2636)(2354,2553)(2355,2646)(2358,2660)(2359,2658)
     (2361,2662)(2364,2666)(2367,2670)(2368,2669)(2369,2672)(2370,2665)(2377,
     2675)(2380,2678)(2387,2399)(2388,2686)(2394,2690)(2396,2519)(2400,2697)
     (2402,2700)(2403,2702)(2404,2703)(2408,2708)(2410,2710)(2412,2713)(2413,
     2712)(2415,2436)(2418,2718)(2424,2723)(2425,2726)(2427,2729)(2429,2732)
     (2430,2733)(2432,2738)(2433,2737)(2434,2740)(2438,2747)(2439,2746)(2440,
     2748)(2442,2751)(2444,2754)(2445,2755)(2446,2756)(2452,2762)(2453,2761)
     (2456,2764)(2457,2766)(2458,2767)(2460,2765)(2463,2772)(2464,2774)(2465,
     2775)(2467,2777)(2473,2709)(2477,2782)(2479,2753)(2480,2749)(2485,2574)
     (2486,2788)(2488,2507)(2489,2790)(2490,2792)(2491,2794)(2493,2797)(2494,
     2796)(2497,2801)(2499,2804)(2500,2806)(2501,2654)(2503,2812)(2504,2811)
     (2506,2815)(2509,2820)(2510,2819)(2517,2635)(2518,2825)(2520,2827)(2525,
     2833)(2527,2835)(2531,2838)(2532,2839)(2534,2842)(2535,2841)(2536,2844)
     (2537,2845)(2540,2847)(2542,2850)(2543,2814)(2544,2852)(2546,2854)(2551,
     2862)(2552,2861)(2556,2866)(2558,2869)(2561,2874)(2562,2873)(2563,2664)
     (2564,2868)(2565,2865)(2566,2877)(2575,2884)(2576,2886)(2578,2887)(2580,
     2888)(2582,2889)(2584,2885)(2585,2882)(2586,2891)(2589,2894)(2594,2899)
     (2596,2898)(2598,2902)(2599,2900)(2600,2905)(2602,2908)(2605,2911)(2606,
     2912)(2607,2913)(2609,2914)(2610,2915)(2615,2923)(2616,2925)(2619,2876)
     (2623,2930)(2627,2935)(2628,2933)(2629,2937)(2631,2943)(2632,2940)(2633,
     2942)(2637,2944)(2639,2941)(2642,2952)(2643,2954)(2650,2910)(2652,2960)
     (2653,2959)(2655,2962)(2656,2858)(2657,2963)(2659,2965)(2661,2966)(2663,
     2969)(2667,2896)(2668,2971)(2671,2976)(2674,2977)(2676,2981)(2679,2985)
     (2680,2984)(2681,2982)(2682,2988)(2683,2990)(2685,2974)(2687,2992)(2691,
     2994)(2692,2995)(2694,2998)(2695,3000)(2696,2934)(2698,3003)(2699,3004)
     (2701,3008)(2714,3018)(2716,3021)(2717,3022)(2719,3026)(2720,3025)(2724,
     3031)(2728,3035)(2730,3039)(2731,3038)(2734,3041)(2735,2993)(2736,3044)
     (2739,3049)(2741,3053)(2742,3052)(2744,3055)(2752,3033)(2757,3071)(2758,
     3072)(2760,3075)(2768,3081)(2769,3048)(2770,3080)(2771,3083)(2773,3082)
     (2776,3089)(2778,3090)(2780,3093)(2781,3094)(2783,3096)(2784,3097)(2785,
     3098)(2789,3102)(2793,3107)(2798,3111)(2799,2964)(2800,3112)(2803,3116)
     (2805,3118)(2807,3120)(2808,3043)(2809,3121)(2810,2961)(2813,2901)(2816,
     3127)(2818,3130)(2821,3115)(2823,3136)(2828,3140)(2829,3139)(2830,3001)
     (2831,3141)(2834,2926)(2836,3143)(2840,3104)(2843,3146)(2846,3148)(2848,
     3088)(2849,3149)(2851,3126)(2853,3154)(2855,3156)(2856,3155)(2860,3161)
     (2863,3166)(2870,3170)(2871,3168)(2872,3173)(2875,3178)(2878,3182)(2879,
     3181)(2880,3184)(2881,3180)(2883,3028)(2890,2973)(2892,3191)(2893,3192)
     (2895,2909)(2903,3195)(2904,3193)(2906,3197)(2907,2972)(2916,3207)(2917,
     3204)(2918,3206)(2920,3212)(2924,3205)(2931,3222)(2932,3224)(2938,3029)
     (2939,3229)(2945,3242)(2946,3239)(2947,3241)(2948,3233)(2950,3235)(2953,
     3240)(2956,3254)(2958,3256)(2967,3263)(2970,3266)(2975,3267)(2978,3271)
     (2979,3270)(2980,3272)(2983,3232)(2986,3279)(2987,3054)(2996,3287)(2997,
     3288)(3002,3293)(3005,3157)(3006,3298)(3010,3289)(3011,3189)(3013,3304)
     (3016,3305)(3017,3190)(3020,3308)(3023,3311)(3024,3312)(3027,3315)(3032,
     3318)(3037,3323)(3040,3327)(3045,3334)(3046,3333)(3047,3331)(3050,3339)
     (3057,3345)(3060,3347)(3061,3344)(3063,3348)(3065,3211)(3067,3320)(3068,
     3351)(3069,3307)(3076,3356)(3077,3355)(3078,3145)(3084,3358)(3085,3150)
     (3086,3199)(3087,3357)(3092,3360)(3095,3363)(3099,3186)(3100,3367)(3106,
     3370)(3109,3236)(3110,3375)(3113,3380)(3117,3385)(3119,3388)(3122,3393)
     (3123,3392)(3125,3391)(3132,3401)(3133,3399)(3134,3403)(3135,3404)(3138,
     3274)(3151,3412)(3153,3414)(3159,3349)(3162,3423)(3163,3422)(3164,3420)
     (3169,3275)(3172,3429)(3174,3437)(3175,3436)(3176,3434)(3179,3237)(3183,
     3444)(3194,3450)(3196,3451)(3198,3454)(3200,3455)(3201,3456)(3202,3458)
     (3203,3459)(3209,3467)(3210,3469)(3214,3303)(3217,3463)(3218,3475)(3219,
     3465)(3226,3480)(3227,3296)(3230,3481)(3231,3276)(3238,3490)(3244,3498)
     (3245,3500)(3247,3504)(3251,3494)(3252,3496)(3253,3506)(3255,3509)(3257,
     3512)(3258,3510)(3260,3514)(3262,3515)(3265,3518)(3268,3522)(3269,3521)
     (3277,3484)(3278,3527)(3282,3446)(3286,3533)(3291,3539)(3294,3543)(3295,
     3541)(3301,3548)(3302,3547)(3309,3553)(3310,3554)(3313,3557)(3314,3556)
     (3319,3560)(3321,3563)(3324,3568)(3325,3566)(3326,3386)(3329,3572)(3332,
     3461)(3336,3578)(3337,3580)(3338,3575)(3352,3369)(3361,3569)(3362,3592)
     (3364,3482)(3365,3594)(3371,3599)(3372,3597)(3376,3604)(3377,3602)(3379,
     3431)(3381,3608)(3382,3610)(3387,3570)(3389,3612)(3390,3525)(3395,3617)
     (3396,3619)(3397,3620)(3398,3520)(3413,3558)(3415,3627)(3418,3478)(3421,
     3593)(3425,3632)(3426,3629)(3430,3460)(3432,3637)(3435,3641)(3439,3646)
     (3440,3640)(3442,3567)(3443,3489)(3452,3651)(3453,3654)(3457,3657)(3462,
     3542)(3464,3659)(3468,3658)(3474,3667)(3476,3670)(3479,3671)(3483,3526)
     (3491,3677)(3492,3674)(3493,3676)(3495,3528)(3499,3675)(3503,3689)(3505,
     3692)(3511,3656)(3513,3698)(3516,3699)(3519,3653)(3523,3702)(3529,3703)
     (3530,3701)(3534,3705)(3537,3706)(3538,3708)(3540,3711)(3550,3717)(3551,
     3719)(3555,3721)(3562,3724)(3564,3729)(3565,3728)(3571,3732)(3573,3735)
     (3574,3623)(3576,3664)(3584,3712)(3585,3615)(3587,3741)(3588,3695)(3589,
     3697)(3590,3745)(3598,3614)(3601,3751)(3603,3753)(3606,3710)(3607,3636)
     (3609,3759)(3613,3761)(3621,3650)(3628,3681)(3630,3747)(3638,3773)(3639,
     3648)(3642,3778)(3643,3777)(3644,3775)(3649,3731)(3660,3752)(3661,3791)
     (3666,3713)(3668,3790)(3669,3802)(3673,3805)(3679,3813)(3680,3815)(3682,
     3804)(3683,3704)(3686,3809)(3688,3811)(3709,3833)(3715,3736)(3716,3748)
     (3718,3836)(3722,3739)(3727,3838)(3730,3843)(3738,3767)(3740,3766)(3746,
     3850)(3749,3763)(3754,3858)(3755,3856)(3757,3840)(3769,3866)(3774,3798)
     (3776,3873)(3780,3876)(3781,3872)(3784,3879)(3787,3881)(3793,3884)(3794,
     3886)(3796,3890)(3799,3818)(3801,3855)(3806,3901)(3807,3898)(3808,3900)
     (3814,3899)(3832,3835)(3839,3920)(3841,3919)(3848,3928)(3849,3929)(3852,
     3930)(3857,3932)(3860,3923)(3862,3921)(3865,3891)(3868,3938)(3874,3940)
     (3880,3945)(3882,3947)(3889,3935)(3894,3956)(3896,3958)(3903,3962)(3906,
     3960)(3908,3948)(3912,3918)(3913,3916)(3922,3965)(3924,3966)(3934,3971)
     (3941,3961)(3942,3975)(3954,3976)(3955,3977)(3957,3980)(3959,3983)(3963,
     3984)(3964,3986)(3978,3994)(3982,3990)(3993,3995)(3996,4007)(3998,4008)
     (4001,4010)(4003,4013)(4004,4014)(4005,4016)(4006,4017)(4009,4022)(4012,
     4026);