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