#include <bits/stdc++.h>
using namespace std;
void pd(int n){
int i,j,sp=n-1;
for(i=0;i<n;i++){
for(j=0;j<sp;j++)
cout<<" ";
for(j=0;j<i+1;j++)
cout<<"* ";
cout<<"\n";
sp--;
}
sp=0;
for(i=n;i>=0;i--){
for(j=0;j<sp;j++)
cout<<" ";
for(j=0;j<i;j++)
cout<<"* ";
cout<<"\n";
sp++;
}
}
int main(int argc, char const *argv[])
{
int n;
cin>>n;
pd(n);
return 0;
}
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