#include <iostream>
#include <cstdlib>
#include <fstream>

int main(int argc, char *argv[]){
	std::ifstream datafile(argv[1]); //input datafile
	std::string str;
	int mt_height[10] = {}; //height of mountain
	int ans[3] = {}; // top 3 height of mountain. 0 -> no.1 1 -> no.2 2 -> no.3

	if(datafile.fail()){
		std::cout << "error : can't open this file." << std::endl;
		exit(1);
	}

	//input 10 height of mountain
	for(size_t i = 0; i < 10; i++){
		std::getline(datafile, str);
		sscanf(str.c_str(), "%d", &mt_height[i]);

		if((mt_height[i] < 0) || (mt_height[i] > 10000)){
			std::cout << "error : out of constraints" << std::endl;
			exit(1);
		}
	}

	//select top 3 height of mountain and sort ans[]
	for(size_t i = 0; i < 10; i++){
		if(ans[0] < mt_height[i]){
			ans[2] = ans[1];
			ans[1] = ans[0];
			ans[0] = mt_height[i];
		}else if(ans[1] < mt_height[i]){
			ans[2] = ans[1];
			ans[1] = mt_height[i];
		}else if(ans[2] < mt_height[i]){
			ans[2] = mt_height[i];
		}
	}

	//output ans[]
	for(size_t i = 0; i < 3; i++){
		std::cout << ans[i] << std::endl;
	}

	return 0;
}