```cpp
#include<bits/stdc++.h>
using namespace std;
string u;
long long b,c,a,m;
int main()
{
cin>>a>>b>>u>>c;
if(c!=0)
for(int i=1;i<=a;i++)
{
for(int j=1;j<=b;j++)
{
cout<<u;
}
cout<<endl;
}
else
for(int i=1;i<=a;i++)
{
if(i==1||i==a)
{
for(int j=1;j<=b;j++)
{
cout<<u;
}
}
else
for(int j=1;j<=b;j++)
{
if(j==1||j==b)
cout<<u;
else
cout<<" ";
}
cout<<endl;
}
return 0;
}
```
#
by 52hertz_yh @ 2024-04-03 13:53:18