Go: package main

import (
	"bufio"
	"fmt"
	"os"
	"sort"
	"strconv"
)

var rdr = bufio.NewReaderSize(os.Stdin, 1000000)

func readLine() string {
	buf := make([]byte, 0, 1000000)
	for {
		l, p, e := rdr.ReadLine()
		if e != nil {
			panic(e)
		}
		buf = append(buf, l...)
		if !p {
			break
		}
	}
	return string(buf)
}

func toInt(str string) int {
	n, _ := strconv.Atoi(str)
	return n
}

func main() {
	lst := make([]int, 0)
	for i := 0; i < 10; i++ {
		lst = append(lst, toInt(readLine()))
	}
	sort.Ints(lst)
	for i := 9; i > 6; i-- {
		fmt.Println(lst[i])
	}
}

C++: #include <iostream>
#include <algorithm>
#include <vector>

using namespace std;


int main(){

  vector<int>h;

  for(int i = 0; i < 10; i++){
    int t;
    cin >> t;
    h.push_back(t);
  }
  sort(h.rbegin(),h.rend());

  for(int i = 0; i < 3; i++){
    cout << h[i] << endl;
  }
  return 0;
}

C++: #include <iostream>

int main()
{
	int a[10];
	int work = 0;

	for(int i = 0;i < 10;i++)
	{
		std::cin >> a[i];
		if(a[i] > 10000)
		{
			std::cout << "値が大きすぎます" << std::endl;
			i -= 1;
		}
	}
	/*そうだ、バブルソートやろう*/

	for(int j = 0;j < 10;j++)
	{
		for(int k = 9;k > j;k--)
		{
			if(a[k] > a[k-1])
			{
				work = a[k-1];
				a[k-1] = a[k];
				a[k] = work;
			}
		}
	}

	std::cout << a[0] << std::endl;
	std::cout << a[1] << std::endl;
	std::cout << a[2] << std::endl;



	return 0;
}

C++: #include <iostream>
#include <algorithm>
using namespace std;
int main()
{
	int arr[10];
	for (int i = 0;i < 10;i++) cin >> arr[i];
	sort(arr, arr + 10);
	cout << arr[9] << endl << arr[8] << endl << arr[7] << endl;
	return 0;
}

C++: #include <stdio.h>
int main(void)
{
	int n,m[10],l,s;
	for(n=0;n<10;n++)
	{
		scanf("%d",&m[n]);
	}
	for(n=0;n<10;n++)
	{
		for(l=n+1;l<10;l++)
		{
			if(m[n]<m[l])
			{
				s=m[n];
				m[n]=m[l];
				m[l]=s;
			}
		}
	}
	printf("%d %d %d\n",m[0],m[1],m[2]);
	return 0;
}

C++: include<iostream>
#include<algorithm>
using namespace std;

int main(){
  int dt[10];
  for(int i=0;i<10;i++)cin>>dt[i];
  sort(dt,dt+10);
  for(int i=9;i>=7;i--)cout<<dt[i]<<endl;
  return 0;
}

C++: #include <iostream>

using namespace std;

int main() {
	const int len = 10;
	int arr[len];

	for (int i = 0; i < len; i++)
		cin >> arr[i];

	for (int i = 0; i < len; i++)
		for (int j = 0; j < len; j++)
			if (arr[i] < arr[j])
				swap(arr[i], arr[j]);

	cout << endl;

	for (int i = len - 1; len - 4 < i; i--)
		cout << arr[i] << endl;
}

C++: #include<stdio.h>

int main(){
    int i;
    int input;
    int height[10], tmp[10];
    for (int i = 0; i < 10; i++){
        scanf("%d", &input);
        height[i] = input;
    }

    int max1 = 0, max2 = 0, max3 = 0;
    for(i = 0; i <= 10; i++){
        if (height[i] > max1)
            max1 = height[i];
    }

    for(i = 0; i <= 10; i++){
        if (max1> height[i] > max2)
            max2 = height[i];
    }

    for(i = 0; i <= 10; i++){
        if (max2 > height[i] > max3)
            max3 = height[i];
    }

    printf("%d\n", max1);
    printf("%d\n", max2);
    printf("%d\n", max3);

    return 0;
}

C++: #include <stdio.h>
#include <math.h>

int main() {
	int m[10];
	int ans[3];
	for(int i=0; i<10; i++) scanf("%d", &m[i]);

	ans[0] = 0; ans[1] = 0; ans[2] = 0;
	for(int j=0; j<10; j++) {
		if(m[ans[0]] < m[j]) {
			ans[0] = j;
		}
	}
	for(int j=0; j<10; j++) {
		if(m[ans[1]] < m[j] && ans[0] != j) {
			ans[1] = j;
		}
	}
	for(int j=0; j<10; j++) {
		if(m[ans[2]] < m[j] && ans[0] != j && ans[1] != j) {
			ans[2] = j;
		}
	}
	printf("%d\n%d\n%d\n", m[ans[0]], m[ans[1]], m[ans[2]]);

	return 0;
}

C++: #include<cstdio>
#include<algorithm>
#include<array>
using namespace std;

int main(){
  array<int,10> xs;
  for(int i=0;i<10;++i)scanf("%d",&xs[i]);
  sort(xs.begin(),xs.end(),greater<int>());
  for(int i=0;i<3;++i)printf("%d",xs[i]);
  return 0;
}

C++: 
#include <iostream>
#include <cstdlib>
#include <cstdio>
#include <cmath>
#include <stack>
#include <cctype>
#include <complex>
#include <vector>
#include <algorithm>

using namespace std;


bool solve(){

	vector<int> h(10,0);
	for(int i=0;i<10;i++){
		cin>> h[i];
	}
	sort(h.begin(),h.end());
	
	cout<< h[9]<< "\n"<< h[8]<< "\n"<< h[7]<< endl;
	
	return true;
}

int main(){
	cout.setf(ios::fixed);
	cout.precision(10);
	solve();

	return 0;
}

C++: #include<iostream>
using namespace std;
int main(){
  int m;
  int m1=0,m2=0,m3=0;
  while(cin>>m){
    if(m1>m){
      m3 = m2;     
      m2 = m1;     
      m1 = m;
    }
    else if(m2>m){
      m3 = m2;   
      m2 = m;
    }
    else if(m3>m){
      m3 = m;
    }
  }
  cout << m1 << endl << m2 << endl << m3 <<endl;
  return 0;
}

C++: #include<iostream>
using namespace std;

int main(){
    int n;
    int m[3];
    m[0]=m[1]=m[2]=0;
    for(int i=0;i<10;i++)
    {
        cin >> n;
        if(n>m[0]) m[0] = n;
        else if(n>m[1]) m[1] = n;
        else if(n>m[2]) m[2] = n;
    }
    for(int i=0;i<3;i++) cout << m[i] << endl;
    return 0;
}

C++: #include <iostream>
#include <algorithm>
using namespace std;

int main()
{
	int a[10];
	int data_size = sizeof(a) / sizeof(a[0]) - 1;
	for (int i=0;i<=data_size;i++)
		cin >> a[i];
	sort(a,a+sizeof(a) / sizeof(a[0]));
	for (int j=0;j<=3 - 1;j++)
		cout << a[j] << ",";
}

C++: #include<iostream>

using namespace std;

int main(){
 int x,buf;
 int H[3];

 for(int i = 0; i < 3; i++){
  H[i] = 0;
 }
 
 for(int i = 0; i < 10; i++){
  cin >> x;
  
  if(x > H[2]){
  
   H[2] = x;
   
   for(int j = 2; j > 0; j--){
  
    if(H[j] > H[j-1]){
     buf = H[j];
     H[j] = H[j-1];
     H[j-1] = buf;
    }
   }
  }
 }
 
 for(int i = 0; i < 3; i++)
    cout << H[i] << endl;
 
  return 0;
}

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

int main(){
  int a[10];
  for(int i = 0; i < 10; i++)
    scanf("%d" &a[i]);
  for(int i = 0; i < 9; i++){
    for(int j = i + 1; i < 10; i++){
      if(a[i] > a[j])
        swap(a[i], a[j]);
    }
  }
  for(int i = 0; i < 3; i++){
    printf("%d\n", a[i]);
  }
}

C++: #include <iostream>

using namespace std;

int main(void)
{
	int input[10];

	for(int i = 0; i < 10; i++){
		cin >> input[i];
	}

	for(int i = 0; i < 3; i++){
		for(int j = i; j < 10; j++){
			if(input[j] > input[i]){
				swap(input[j], input[i]);
			}
		}
	}


	for(int i = 0; i < 3; i++){
		cout << input[i] << endl;
	}


	return 0;
}

C++: #include <stdio.h>

int main(){

	int a[10] = {}, i, g, n;
	for (i = 0; i < 10; i++){ scanf("%d", &a[i]); }
	for (n = 0; n < 9; n++){
		for (i = 0; i < 9; i++){
			if (a[i] > a[i + 1]){
				g = a[i];
				a[i] = a[i + 1];
				a[i + 1] = g;
			}
		}
	}
	for (i = 0; i < 3; i++){ printf("%d\n", a[i]); }
	return 0;
}

C++: #include<iostream>
#include<vector>
#include<algorithm>
using namespace std;

int main()
{
	int a;
	vector<int>v;
	for (int i = 1; i <= 10; i++)
	{
		cin >> a;
		v.push_back(a);
	}
	sort(v.begin(), v.end());
	reverse(v.begin(), v.end());
	for (int i = 0; i < 3; i++)cout << v[i] << endl;
	return 0;
}

C++: #include<iostream>
using namespace std;
int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);
    int yama,top1=0,top2=0,top3=0;
    for(int i=0;i<10;i++){
        cin >> yama;
        if(top1<yama){
            top3 = top2;
            top2 = top1;
            top1 = yama;
        }
        else if(top2<yama){
            top3 = top2;
            top2 = yama;
        }
        else if(top3<yama){
            top3 = yama;
        }
    }
    cout << top1 << "\n" << top2 << "\n" << top3 << "\n";
}

C++: import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.arrays;

class aoj001{
  public static void main(string[] a){
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    int[] arr = new int[10]; 
    for (int i = 0; i<10; i++)
      arr[i] = integer.parseint(br.readline());

    arrays.sort(arr);
    for (int i = 0; i < 3; i++)
      system.out.println(arr[i]);
  }
}