杭电 2000

#include <iostream>
using namespace std;
#define MAXN 4
int main()
{
    //char arr[MAXN] = {0};
    char arr[MAXN];
    memset(arr,0,MAXN);
    while (cin >> arr)
    {
        for (int i = 0; i < 2; i++)
        {
            for (int j = 0; j < 2-i; j++)
            {
                char temp;
                if (arr[j] > arr[j+1])
                {
                    temp = arr[j+1];
                    arr[j+1] = arr[j];
                    arr[j] = temp;
                }
            }
        }
//         for (int i = 0; i < 3; i++)
//         {
//             cout <<  arr[i] << ‘ ‘;
//         }
//         cout << endl;
//         
        cout << arr[0] <<‘ ‘ << arr[1] <<‘ ‘ << arr[2]<<endl;
    }
    return 0;
}