#include <stdio.h>

// What does the program print?

void mystery(char *a, int *b, int c) {
  int *d = b - 1;
  c = *b + c;
  *b = c - *d;
  *d = *b - *d;
  a[2] = a[b - d];
}

int main(int argc, char **argv) {
  char ant[4] = "bed";
  int x[2];
  *x = 6;
  x[1] = 7;
  int y = 4;
  int *z = &y;
  *z = *x;
  printf("%d %d %d %s\n", *x, x[1], y, ant);
  mystery(ant, x + 1, y);
  printf("%d %d %d %s\n", *x, x[1], y, ant);
}