char neis[6][4] = {
    {1,2,3,4},
    {5,2,0,4},
    {1,5,3,0},
    {0,2,5,4},
    {1,0,3,5},
    {3,2,1,4}
};
char neid[6][4] = {
    {0,0,0,0},
    {0,3,0,1},
    {1,2,3,0},
    {0,1,0,3},
    {3,0,1,2},
    {0,2,0,2},
};
char dd[][2] = { {-1,0}, {0,1}, {1,0}, {0,-1} };