import sys

i   = 0

argc = len(sys.argv)
if argc == 1:
				f	= sys.stdin
elif argc == 2:
				try:
								f	= open(sys.argv[1],	"r")
				except FileNotFoundError:
								sys.exit("wc:	No	such	file	or	directory,",	sys.argv[1])
else:
				sys.exit("usage:	wc	[file]")

while True:
				s	= f.readline()
				if not	s:	break
				print(s.replace(s[2], "*"))
f.close()