#include <stdio.h>
#include <unistd.h>

int main(){
    int pid;

    pid = fork();

    if(pid < 0){
        printf("Error\n");
        exit(-1);
    }else if(pid == 0){
        printf("Child\n");
        exit(0);
    }else{
        printf("Parent\n");
        exit(0);
    }

    return 0;
}