#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using llu = long long unsigned;

vector<ll> dx = { 0, 0, -1, 1};
vector<ll> dy = {-1, 1,  0, 0};

#define MOD 1000000007
int main() {
    string N;
    cin >> N;

    if (N[0]=='-') {
        cout << "0" << endl;
    } else {
        if (N.size()>3) {
            cout << N[0];
            for (int i=1; i<N.size()-2; i++) {
                cout << "0";
            }
            cout << endl;
        } else {
            cout << "0" << endl;
        }
    }
    return 0;
}