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

void SIGFPEhandler2(int sig1) {
    printf("1");
    signal(SIGFPE, SIGFPEhandler1);
    exit(EXIT_SUCCESS);
}

void SIGFPEhandler1(int sig2) {
    signal(SIGFPE, SIGFPEhandler2);
    printf("2");
    exit(EXIT_SUCCESS);
}


int DBZ(int i) {
    return i/0;
}

int main(void) {
  (void) signal(SIGFPE, SIGFPEhandler1);
    DBZ(5);
    return EXIT_SUCCESS;
}


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