matrix := [ [10,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0], [0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0], [0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0], [0,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0], [5,4,9,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0], [0,0,0,0,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0], [0,0,0,0,0,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0], [0,0,0,0,0,0,0,0,0,0,6,0,0,0,0,0,0,0,0,0], [0,0,0,0,0,0,0,0,0,0,0,0,6,0,0,0,0,0,0,0], [0,0,0,0,0,0,0,0,0,0,0,0,0,0,6,0,0,0,0,0], [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,6,0,0,0], [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,6,0,0], [0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0], [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,6], [7,5,6,5,5,8,4,6,4,6,6,9,8,0,5,6,7,3,8,9], [10,7,4,0,5,3,10,5,4,4,4,10,4,2,8,6,2,1,0,9], [9,0,3,9,10,3,3,1,7,4,0,9,4,6,3,8,6,3,0,7], [2,8,10,2,5,0,10,0,9,0,0,6,0,0,1,0,0,0,0,0], [5,7,3,7,1,9,1,3,3,9,6,1,0,2,9,7,2,8,2,7], [1,8,3,0,1,8,2,7,8,1,3,9,3,2,9,1,10,3,6,3] ]*Z(11);