#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
#include <iomanip>
#include <cmath>
#include <stdio.h>
#include <queue>
#include <deque>
#include <cstdio>
#include <set>
#include <map>
#include <bitset>
#include <stack>
#include <cctype>
using namespace std;
int main() {
	string s = "00", n;
	cin >> n;
	s += n;
	for (int i = s.size() - 3; i < s.size(); i++) {
		cout << s[i];
	}
	cout << endl;
}