题解

#include <bits/stdc++.h>
using namespace std;
int main(){
string a,b;
cin>>a>>b;
if(a.length()<b.length()){ //判断长度
cout<<a<<endl;
cout<<b;
return 0;
}else if(a.length()>b.length()){
cout<<b<<endl;
cout<<a;
return 0;
}else if(a.length()==b.length()){
if(a<b){ //判断ASCLL码表大小
cout<<a<<endl;
cout<<b;
}else if(b<a){
cout<<b<<endl;
cout<<a;
}
}
return 0;
}