#include <stdio.h>
#include <unistd.h>
#include <sys/wait.h>
int main(int argc, char* argv[]) {
pid_t ret1 = 0;
pid_t ret2 = 0;
for (int i = 0; i < 3 ; i ++)
{
ret1 = fork();
if ( ret1 != 0)
break;
else
ret2 = fork();
}
}
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