#include <iostream>
using namespace std;

int main() {
	int st1;
	int st2;
	int st3;
	
	cin>>st1;
	cin>>st2;
	cin>>st3;
	
	if((st1,st2)<st3) {
		cout<<st3;
	}else{
		cout<<0;
	}
	return 0;
}