enum {printFront, printBack, printTop, printBottom, printSideLeft, printSideRight};
 
void printWall(int ***arr, int n, int m, int z, int curMode)
{
    int i, j, k = 0;
    switch (curMode)
    {
    case printBack: k = z-1;
    case printFront:
        for (i = 0; i < n; ++i)
        {
            for (j = 0; j < m; ++j) printf("%5d", arr[i][j][k]);
            printf("\n");
        }
        break;
    case printBottom: k = n-1;
    case printTop:
        for (i = 0; i < m; ++i)
        {
            for (j = 0; j < z; ++j) printf("%5d", arr[k][i][j]);
            printf("\n");
        }
        break;
    case printSideRight: k = m-1;
    case printSideLeft:
        for (i = 0; i < n; ++i)
        {
            for (j = 0; j < z; ++j) printf("%5d", arr[i][k][j]);
            printf("\n");
        }
        break;
    default:
        printf("Error mode %d!\n", curMode);
    }
}