import java.util.Scanner;
import java.io.PrintStream;

public class Test4H
{
   public static void main(String[] arguments)
   {
      PrintStream output = System.out;
      Scanner input = new Scanner(System.in);

      output.print("Enter the size of one block: ");
      final int BLOCK_SIZE = input.nextInt();

      output.print("Enter the number of blocks: ");
      final int N = input.nextInt();

      final char ODD = '#';
      final char EVEN = '+';

      for (int i = 0; i < BLOCK_SIZE; i++)
      {
          for (int j = 0; j < N; j++)
          {
              for (int k = 0; k < BLOCK_SIZE; k++)
              {
                  if (j % 2 == 0)
                  {
                      output.print(EVEN);
                  }
                  else
                  {
                      output.print(ODD);
                  }
              }
          }
          output.println();
      }
   }
}