题解

#include<bits/stdc++.h>
using namespace std;
int main(){
    string s[3];
    cin >> s[1] >> s[2];
    if (s[1].length() > s[2].length())  //比长短
        cout << s[2] << "\n" << s[1];
    else if (s[2].length() > s[1].length())
        cout << s[1] << "\n" << s[2];
    else{
        if (s[1] > s[2])  //比ASCII码
            cout << s[2] << "\n" << s[1];
        else
            cout << s[1] << "\n" << s[2];
    }
    return 0;
}