#include <iostream>
#include <cstdio>
#include <functional>
#include <algorithm>
#include <string>
using namespace std;

int main(){
        int i;
        int high[10];
        for(i = 0; i < 10; i++){
                scanf("%d", &high[i]);
        }
        sort(high, high + 10);
        reverse(high, high + 10);
        for(i = 0; i < 3; i++){
                printf("%d", high[i]);
        }
        return 0;
}