23extern const int aW[36];
24extern const int aX[36];
25extern const int aY[36];
26extern const int aZ[36];
30const int aW[36] = { 0, 1, 0, 1, 0, 1,
38const int aX[36] = { 23, 10, 22, 9, 21, 8,
46const int aY[36] = { 0, 2, 0, 2, 0, 2,
54const int aZ[36] = { 5, 3, 4, 2, 3, 1,
56 22, 11, 21, 10, 20, 9,