var
 i,j: integer;
 n,m: integer;

BEGIN
 write('Введите n:');
 readLn(n);
 write('Введите m:');
 readLn(m);

 For i:=1 to m do
  begin
   For j:=1 to n do
    begin
     if ((j mod 2) = 0) then
      write('*')
     else
      write('#');
    end;
   writeLn;
  end;
end.