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

int main(int argc, char **argv){
	volatile int modified;
	char buffer[64];

	modified = 0;
	gets(buffer);

	if(modified != 0){
		printf("success!\n");
	}
	else{
		printf("try again!\n");
	}
}