#include <vector>
#include <list>
#include <map>
#include <set>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <ctime>
#include <cstring>
 
using namespace std;

int main(){
	int mountain[10];
	for(int i=0;i<10;i++){
		cin>>mountain[i];
	}
	sort(mountain,mountain+10,greater<int>());
	for(int i=0;i<3;i++){
		cout<<mountain[i];
	}
	return 0;
}