#include<iostream>
using namespace std;
int main()
{
int i, j, k,r;
cout<<"Enter the row of diamond ";
cin>>r;
cout<<endl;
for(i=1;i<=r;i++)
{
for(j=1;j<=r-i;j++)
{
cout<<" ";
}
for(k=1;k<=2*i-1;k++)
{
cout<<"*";
}
cout<<endl;
}
for(i=r-1;i>=1;i--)
{
for(j=1;j<=r-i;j++)
{
cout<<" ";
}
for(k=1;k<=2*i-1;k++)
{
cout<<"*";
}
cout<<endl;
}
}
