题解

#include<iostream>
#include<cstring>
using namespace std;
int main(){
string a,b;
int lng,p = 0,y,z;
cin >> a >> b;
if(a.size() > b.size()){
lng = a.size();
} else {
lng = b.size();
}
if(a.size() > b.size()){
p = 1;
} else if(a.size() < b.size()){
p = 2;
} else {
for(int i = 0;i < lng;i ++){
if(i > a.size()){
y = 0;
} else {
y = a[i];
}
if(i > b.size()){
z = 0;
} else {
z = b[i];
}
if(y > z){
p = 1;
break;
} else if(z > y){
p = 2;
break;
}
}

}

if(p == 1){
    cout << b << endl;
    cout << a << endl;
} else {
    cout << a << endl;
    cout << b << endl;
}
return 0;

}