#include <iostream>
using namespace std;
int main(){
    int n;
    cin>>n;
    
    if(n<1 || n>10){
        cout<<"Invalid Input"<<endl;
        return 0;
    }
    for( i = 1;i <=n;i++)
    {
        for( j = 1;j <=i;j++)
        cout<<"*";
    }
        cout<<endl;
        
    }
    for( i=n-1;i>=1;i--){
        for( j=1;j<=i;j++)
        cout"*";
        
    }
    cout<<"*";
    }
    cout<<endl;
    return 0;
}