#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <setjmp.h>

void catcher(int a)
{
        setresuid(geteuid(),geteuid(),geteuid());
    printf("WIN!\n");
        system("/bin/sh");
        exit(0);
}

int main(int argc, char **argv)
{
    puts("source code is available in level02.c\n");

        if (argc != 3 || !atoi(argv[2]))
                return 1;
        signal(SIGFPE, catcher);
        return atoi(argv[1]) / atoi(argv[2]);
}