#include<bits/stdc++.h>
using namespace std;
int main() {
	string a;
	cin>>a;
	int sum = 0;
	if (a[0] == '-'){
		printf("-");
		sum++;
	}
	for (int i = a.size() - 1;i >= sum;--i){
		if (a[i] != '0'){
			cout<<a[i];
		}
	}
	return 0;
}