#!/usr/bin/env python
# -*- Coding: UTF-8 -*-

while True:
	try:
		renglones=int(raw_input('Renglones: '))
		break;
	except ValueError:
		print "Use solo digitos";

while True:
    try:
        columnas=int(raw_input('Columnas: '))
        break;
    except ValueError:
        print "Use solo digitos";

for i in range(renglones):
	print "*"*columnas