#include <iostream>		//cin, cout
#include <vector>		//vector
#include <algorithm>	//sort,min,max,count
#include <string>		//string,getline, to_string
#include <cstdlib>		//abs(int)
#include <utility>		//swap, pair
#include <deque>		//deque
#include <climits>		//INT_MAX
#include <bitset>		//bitset

using namespace std;

int main() {

	int N;
	cin >> N;

	string S;
	bool flg = false;

	for (int i = 0; i < N; i++) {
		cin >> S;
		flg = false;
		for (int j = 0; j < 5; j++) {
			if (S[j] != '0') {
				flg = true;
			}
			if (flg) {
				cout << S[j];
			}
		}
		if (flg) { cout << endl; }
	}

	if (!flg) {
		cout << 0 << endl;
	}

	return 0;

}