int i = 7 , j = 7 , k = 0 , n ;

int rows ;

cin>>rows;

n = ( rows + 1 ) / 2 ;

for ( i = 1 ; i <= rows ; i++ ){

if( rows % 2 == 0 ){

if ( i <= n ){

k++;

}

if( i > n + 1 ){

k--;

}

}

else

i <= n ? k++ : k-- ;

for ( j = 1 ; j <= rows ; j++ ){

if( j >= ( n + 1 ) - k && j <= ( n - 1 ) + k ){

cout<<"*";

}

else{

cout<<" ";

}

}

cout<<endl;

}

}