#include<iostream>
using namespace std;
int main()
{
long int n=0,c=0,i=1,j=0,k=0;
cout<<“enter how many lines\n”;
cin>>n;

cout<<“diamond of “<<n<<” lines\n”;

cout<<“\n\n”;
k=n;
while(n>0)
{
c=n;
while(c>0)
{
cout<<” “;
c–;
}
j=i;
while(j>0)
{
cout<<“*”;
j–;
}
i=i+2;
n–;
cout<<“\n”;

}
i=i-2;

n=1;
while(n<=k)
{
c=n;
while(c>0)   // i j and c are respective counters
{
cout<<” “;
c–;
}
j=i;
while(j>0)
{
cout<<“*”;
j–;
}
i=i-2;
n++;
cout<<“\n”;

}
return 0;
}