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<cstdio>
#include<iostream>
using namespace std;

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

C++: #include <iostream>
#include <algorithm>
#include <cstdio>
#include <cmath>
#include <string>
#include <cctype>
#include <stack>
#include <queue>
#include <vector>
#include <cstdlib>
#include <list>
#include <cmath>
#include <map>
#include <utility>
#include <numeric>
#include <set>
#include <map>

#define REP(i, n) for(int i = 0;i < n;i++)
#define REPR(i, n) for(int i = n;i >= 0;i--)
#define FOR(i, m, n) for(int i = m;i < n;i++)
#define _USE_MATH_DEFINES

using namespace std;

const int dx[4] = { 1 , 0 , -1 ,0 };
const int dy[4] = { 0 , 1 , 0 , -1 };

int main() {

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

	sort(h, h + 10);

	cout << h[9] << endl;
	cout << h[8] << endl;
	cout << h[7] << endl;

	return 0;

}

C++: #include<stdio.h>

int main()
{
    int i,j,temp,height[15];

    for(i=0;i<10;i++)
    {
        scanf("%d",&height[i]);
    }
    for(i=0;i<10;i++)
    {
        for(j=i+1;j<10;j++)
        {
            if(height[i]>height[j])
            {
                temp=height[j];
                height[j]=height[i];
                height[i]=temp;
            }
        }
    }
    for(i=9;i>6;i--)
    {
        printf("\n%d",height[i]);
    }
    return 0;
}

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

int main()
{
	std::array<int,10> mh;
	for (int &el : mh){
		std::cin >> el;
	}
	std::sort(mh.begin(), mh.end());

	std::cout << mh.back() << std::endl;
	std::cout << mh.back() - 1 << std::endl;
	std::cout << mh.back() - 2 << std::endl;

}

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

int main(void) {
    priority_queue<int> que;
    
    
    int num;
    while(scanf("%d", &num) != EOF) {
        que.push(num);
    }
    cout << que.top() << endl; que.pop();
    cout << que.top() << endl; que.pop();
    cout << que.top() << endl; que.pop();
    
    return(0);
}

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

int main() {
	int h[10],max;
	for (int i = 0; i < 10; i++)
		cin >> h[i];
	
	for (int lp = 0; lp < 3; lp++) {
		max = -1;
		for (int lp2 = 0; lp2 < 10; lp2++) {
			if (max == -1)
				max = lp2;
			else if (h[max] < h[lp2])
				max = lp2;
		}
		cout << h[max]<<endl;
		h[max] = -1;
	}
	return 0;
}

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

int main()
{
priority_queue<int> que;
for(int i=0;i<10;i++)
{
int t;
cin>>t;
que.push_back(t);
}
for(int i=0;i<3;i++)
{
cout<<que.top()<<endl;
que.pop();
}
return 0;
}

C++: 
#include<stdio.h>
int main()

{
    int i, j, n;
    int count=0;
    scanf("%d", &n);
    if(n>1)
    {

        for(j=1; j< n; j++)
    {


        for(i=2;i< j; i++)
            {
                if(j%i==0 && n%i==0)
                break;


            }
        if(j%i==0 && n%i==0)
        count++;
    }
    printf("%d", n-1-count);
    }
    else if(n==1)
    printf("1");

    return 0;
}

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

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    
    int ans[10];
    for(int i=0;i<10;i++) cin >> ans[i];
    sort(ans, ans+10);
    for(int i=9;i>=7;i--) cout << ans[i] << "\n";
    return 0 ;
}

C++: #include<iostream>
#include<algorithm>
using namespace std;
int a[10];
int main(){
for(int i=0;i<9;i++){
cin>>a[i];
}
soft(a[0],a[9]);
cout<<a[0]<<a[1]<<a[2]<<endl;
return 0;
}

C++: #include<algorithm>a[10],imain(){    for(;i<10;scanf("%d",a+i++)); sort(a,a+10);for(;i>7;printf("%d\n",a+(--i)));return 0;}

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

int main(){
	
	int height[10] = {};

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

	int f = 0, s = 0, t = 0;

	for (int i = 0; i < 9; i++){
		if (height[i] > t){
			t = height[i];
		}
		if (t > s){
			swap(s, t);
		}
		if (s > f){
		swap(f,s);
		}
	}
    
	cout << f<< "\n" << s << "\n" << t << endl;
		return 0;
}

C++: #include<iostream>
#include<vector>
#include<cstdio>
#include<string>
#include<algorithm>
#include<numeric>
#include<vector>
#include<iostream>
#include<map>

using namespace::std;

int main(void)
{

  vector<int>h(10);

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

  sort( h.begin() , h.end() );

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

  return 0;
}

C++: #include <stdio.h>
#include <functional>
int main(){
  int mt[10], i;
  std::sort(mt, mt + 10, std::greater<int>);
  for (i = 0; i < 3; i++) printf("%d", mt[i]);return 0;
}

C++: #include<iostream>
#include<algorithm>
using namespace std;
int main(){
int a[10],i,j;
for(i=0;i<10;i++){
cin>>a[i];
}
for(i=0;i<10;i++){
for(j=9;j>i;j--){
if(a[i]<a[j]){
swap(a[i],a[j]);
}
}
}
for(i=0;i<3;i++){
cout<<a[i]<<endl;
}
return 0;
}

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

int i,j,a[12];

int comp(const void *p,const void *q){
	return *(int *)q-*(int *)p;
}

int main(){
	scanf("%d",&a[0]);
	for(i=0;i<10;i++)scanf("\n%d",&a[i]);
	
	qsort(a,10,sizeof(int),comp);
	
	printf("%d\n",a[0]);
	printf("%d\n",a[1]);
	printf("%d",a[2]);
	
	return 0;
}

C++: #include<iostream>
#include<vector>
#include <algorithm>
using namespace std;
int main(){
    vector<int> m(10);
    for(int a; cin>>a;){
        m.push_back(a);
    }
    sort(m.begin(), m.end(), greater<int>());
    for(int i=0; i<3; i++){
        cout << m[i] << "\n";
    }
    return 0;
}

C++: #include <stdio.h>

int main()
{
  int first = 0;
  int second = 0;
  int third = 0;
  int high, i;

  for(i = 0;i < 10;i++){
    scanf("%d", &high);
    
    if(high > first){
      third = second;
      second = first;
      first = high;
    }else if(high > second){
      third = second;
      second = high;
    }else if(high > third){
      third = high;
    }
  }
  printf("%d\n", first);
  printf("%d\n", second);
  printf("%d\n", third);
 
}

C++: #include<algorithm>a[10],i;main(){    for(;i<10;scanf("%d",a+i++)); sort(a,a+10);for(;i>7;printf("%d\n",a+--i));return 0;}

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

using namespace std;

int main(void) {
	int height[10];
	priority_queue<int,vector<int> > que;
	
	for(int i=0;i<10;i++){
		scanf("%d",&height[i]);
		que.push(height[i]);
	}
	for(int i=0; i<3; i++){
		printf("%d\n",que.top());
		que.pop();
	}
	
	return 0;
}

C++: #include <cstdio>
#include <algorithm>

using namespace std;

int main(void){
  int i,array[10];

  for(i=0;i<10;i++)  scanf("%d",&array[i]);
  sort(array,array+10);
  for(i=0;i<3;i++)  printf("%d\n",array[i]);

  return 0;
}

C++: #include<iostream>
using namespace std;
int main(void)
{
  int a[10]={};
  int i=0;
  int j=0;

  for(i=0;i<10;i++)
    cin>>a[i];

  sort(a,a+10);

  cout<<a[9]<<endl<<a[8]<<endl<<a[7]<<endl;

}