#include <bits/stdc++.h>
using namespace std;
int main() {
    int x;
    cin>>x;
    int b=x/100;
    int g=x%10;
    int h=b*10+g;
    cout<<h<<endl;
    return 0;
}
/**************************************************************
	Problem: 1615
	User: fuhoubin
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/