#include <stdlib.h>
#include <stdio.h>
#include <assert.h>

void bye() { printf("all ok\n"); }

int main(int argc, char **argv) {
  atexit(bye);

  char *buffer = (char *)malloc(100);
  for (int i = 0; i < 100; i++) buffer[i] = (i * i) % 256;
  buffer = (char *)realloc(buffer, argc + 50);
  for (int i = 0; i < argc + 50; i++) {
    // printf("%d : %d : %d : %d\n", i, (int)(buffer + i), buffer[i],
    // (char)((i*i)%256));
    assert(buffer[i] == (char)((i * i) % 256));
  }
  return 1;
}