yuzhanbo 2023-05-14 22:01:05 11 返回题目
#include<bits/stdc++.h>
using namespace std;
int n,m,s;
int main(){
char s;
cin>>s;
cout<<" "<<s<<" "<<endl;
cout<<' '<<s<<s<<s<<' '<<endl;
cout<<s<<s<<s<<s<<s<<endl;
return 0; }
