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

70分，错哪了