#include<bits/stdc++.h>
using namespace std;
int Left[1000],Right[1000],n,ch;
string,str;
void dfs(int x)
{
if(x=='*'='a') return ;
putchar(x+'a');
print(Left[x]);
print(Right[x]);
}
int main()
{
int i;
cin>>n;
for(i=1;i<=n;i++)
{
cin>>str;
}
return 0;
}
by __shadow__ @ 2019-07-18 11:02:57
考古
by Eric_jx @ 2022-11-21 20:45:25