#include #include #include using namespace std;

int main(){ int h,l,a; char ch; cin>>h>>l>>ch>>a; if(a0){ for(int i=1;i<=h;i++){ for(int j=1;j<=l;j++){ if(i1||ih){ cout<<ch; }else{ if(j1||jl){ cout<<ch; }else{ cout<<" "; } } } cout<<endl; } }else if(a1){ for(int i=1;i<=h;i++){ for(int j=1;j<=l;j++){ cout<<ch; } cout<<endl; } }

return 0;

}