C++ :

#include<stdio.h>
#include<iostream>
using namespace std;
int main()
{
    const int size = 3;
    int arr[size];
    while (cin>>arr[0] >> arr[1] >> arr[2])
    {
          
          int temp;//中间变量 
          //选择排序
          for(int i = 0;i < size;i++){
                  for(int j = i + 1;j < size;j++ ){
                          if(arr[i] > arr[j]){
                                  temp = arr[i];
                                  arr[i] = arr[j];
                                  arr[j] = temp;  
                          }
                  }
          }
          
          //输出
          for(int i = 0;i < size - 1;i++){                  
                  cout<< arr[i] << " ";               
          }
          cout<< arr[size - 1];  
          
          cout << endl;
    } 
    return 0;
} 

Java :

import java.util.*;
public class Main {
	public static void main(String[] args) {
		int a[]=new int[3],i,j;
		Scanner scan=new Scanner(System.in);
		while(scan.hasNext()) {
			for(i=0;i<3;i++)
				a[i]=scan.nextInt();
			for(i=0;i<3;i++)
				for(j=0;j<2-i;j++) {
					if(a[j]>a[j+1]) {
						a[j]=a[j+1]+a[j];
						a[j+1]=a[j]-a[j+1];
						a[j]=a[j]-a[j+1];
					}
				}
			for(i=0;i<3;i++) {
				System.out.print(a[i]);
				if(i<2)
					System.out.print(" ");
			}
			System.out.print("\n");
		}
	}
}

Python :

# coding=utf-8
while 1:
    try:
        a=list(map(int,input().split()))
        a.sort()
        print(' '.join(map(str,a)))
    except:
        break