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