#include <iostream>
using namespace std;
typedef long long ll;
string work(ll t){
    string s = "";
    while(t){
        s += (t % 10) + '0';
        t /= 10;
    }
    string res = "";
    int i = 0;
    while(s[i] == '0')  i ++ ;
    while(i < s.size()){
        res += s[i];
        i ++ ;
    }
    return res.size() == 0 ? "0" : res;
}
int main(){
    ll n;   cin >> n;
    if(n < 0){
        n = -n;
        cout << '-';
    }
    cout << work(n) << endl;
    return 0;
}