#define ROWS 12
#define COLUMNS 10
#include <stdio.h>

void print56(void *array, unsigned width) {
  printf("%d\n", *(int *)(array + (5 + 6 * width) * sizeof(int)));
}

int main(void) {
  unsigned i, j;
  int g[COLUMNS][ROWS];
  for (i=0; i<ROWS; i++) 
    for (j=0; j<COLUMNS; j++) 
      g[j][i] = i*10 + j;
  print56(g, ROWS);
  return 0;
}