#include <bits/stdc++.h>
using namespace std;

int main(){
	string str;
	int count = 0;
	int tmp = 0;
	long long int check = 0;
	long long int plus = 1;
	while(tmp != 10){
		printf("%010lld\n",check);
		cin >> tmp >> str;
		if(count > tmp){
			check -= plus;
			plus *= 10;
		}else if(count < tmp){
			count = tmp;
			plus *= 10;
		}
		check += plus;
	}
	return 0;
}