https://www.e-olymp.com/az/problems/108

/*
    Author: Kanan Asgarli
    https://www.e-olymp.com/az/problems/108
*/
#include <iostream>
#include <algorithm>
using namespace std;
int a[3];
int main()
{
    cin>>a[0]>>a[1]>>a[2];
    sort(a,a+3);
    cout<<a[1]<<endl;
    return 0;
}