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

int main(int argc, char **argv){
	volatile int modified;
	char buffer[64];
	
	if(argc != 2){
		perror("argc");
	}

	modified = 0;
	strcpy(buffer,argv[1]);
	if(modified == 0x61626364){
		printf("success!\n");
	}
	else{
		printf("try again!, you got 0x%08x\n",modified);
	}
}