matrix := [ [16,9,0,0,0,0,0,0,0,0,0,0,0,0,0], [0,0,14,0,0,0,0,0,0,0,0,0,0,0,0], [13,8,7,0,0,0,0,0,0,0,0,0,0,0,0], [0,0,0,0,14,0,0,0,0,0,0,0,0,0,0], [0,0,0,0,0,0,14,0,0,0,0,0,0,0,0], [0,0,0,0,0,0,0,14,0,0,0,0,0,0,0], [0,0,0,14,0,0,0,0,0,0,0,0,0,0,0], [0,0,0,0,0,0,0,0,0,0,14,0,0,0,0], [0,0,0,0,0,0,0,0,0,0,0,14,0,0,0], [0,0,0,0,0,0,0,0,0,0,0,0,14,0,0], [0,0,0,0,0,14,0,0,0,0,0,0,0,0,0], [17,3,17,16,1,0,14,18,8,17,9,13,7,13,14], [3,20,2,19,8,7,9,7,2,12,16,1,3,0,1], [14,18,19,12,6,8,21,9,14,3,22,4,12,1,2], [15,9,5,8,8,8,8,1,9,5,6,2,0,10,6] ]*Z(23);