C++ :

#include <iostream>
#include <stdio.h>
#include <algorithm>
using namespace std;
int a,b,c,d;
int main()
{
//	freopen("8k.in","r",stdin);
//	freopen("8k.out","w",stdout);
	cin >>a>>b>>c;
    if (a>b) swap(a,b);
	if(a>c) swap(a,c);
	if (b>c) swap(b,c);
	cout << b<< endl;
	return 0;
}