#include<bits/stdc++.h>
using namespace std;
int main(){
    int x,s,g,sh,b;
    cin>>x;
    g=x%10;
    sh=x/10%10;
    b=x/100;
    cout<<s;
     
}
/**************************************************************
	Problem: 1028
	User: chenmingyu
	Language: C++
	Result: Wrong Answer
****************************************************************/