#include <bits/stdc++.h>
using namespace std;

int main(){
	vector<int> A(10);
	
	for (int i=0;i<10;i++){
		cin>>A[i];
	}
	
	sort(A.begin(), A.end());
	reverse(A.begin(), A.end());
	
	cout<< A[2]<<endl;
	
	return 0;
}