还是比较简单的

#include<bits/stdc++.h>
#define aa using
#define aaa namespace
#define aaaa std
#define aaaaa int
#define aaaaaa main
#define aaaaaaa ()
#define aaaaaaaa cin
#define aaaaaaaaa >>
#define aaaaaaaaaa cout
#define aaaaaaaaaaa <<
#define aaaaaaaaaaaa +
#define aaaaaaaaaaaaa ;
#define aaaaaaaaaaaaaa ,
#define aaaaaaaaaaaaaaa {
#define aaaaaaaaaaaaaaaa }
aa aaa aaaa aaaaaaaaaaaaa
aaaaa a aaaaaaaaaaaaaa b aaaaaaaaaaaaa
aaaaa aaaaaa aaaaaaa aaaaaaaaaaaaaaa
aaaaaaaa aaaaaaaaa a aaaaaaaaa b aaaaaaaaaaaaa
aaaaaaaaaa aaaaaaaaaaa a aaaaaaaaaaaa b aaaaaaaaaaaaa
aaaaaaaaaaaaaaaa