题解

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