#include <signal.h>

void cntl_c_handler(int dummy)
{
  signal(SIGINT, cntl_c_handler);
  printf("You just typed cntl-c\n");
}

main()
{
  int i, j;

  signal(SIGINT, cntl_c_handler);

  for (j = 0; j < 200; j++) {
    for (i = 0; i < 1000000; i++);
  }
}