using S=System.Console;class A{static void Main(){for(int i=0,x=int.Parse(S.ReadLine());i++<x;S.WriteLine())for(int j=0;j++<x;)if(!(x/2+1!=i&j>x/2+1))S.Write(x/2+1==j|x/2+1==i?'+':' ');}}
Note that non-ascii characters in the above source code will be escaped (such as \x9f).