#include <iostream>
using namespace std;

int main() {
	double a, b, c;
	cin >> a >> b >> c;
	if ((b > a && a > c) || (c > a && a > b)) {
		cout << a;
	}
	else if ((a > b && b > c) || (c > b && b > a)) {
		cout << b;
	}
	else {
		cout << c;
	}
	return 0;
}