#include<bits/stdc++.h>
#define int long long
using namespace std;
string a[2],aa;
signed main()
{
	cin>>a[1]>>a[2];
    cout<<a[1].size()<<" "<<a[2].size()<<" "<<a[1]<<" "<<a[2]<<"\n";
    aa=a[1];//注释这后就可以
    cout<<a[1].size()<<" "<<a[2].size()<<" "<<a[1]<<" "<<a[2];
}

in:

a aa

out://为什么

1 2 a aa
1 1 a a