#include<bits/stdc++.h>

using namespace std;

int main()

{

int n,r,c;

while(cin>>n)

{

c=0;

if(n==0){cout<<'0'<<"\n"; continue;}

if(n<0)cout<<'-',n=-n;

while(n>0)

{

r=n%10; n/=10;

if(c==0 && r==0) continue;

else{cout<<r;c++;}

}

cout<<"\n";

}

}