#!/usr/bin/python
import re
import sys, time

#-----------------
s = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxB"
regex = r"^(x+|C)*A$"
#-----------------

r = re.compile(regex)
print "String: %s" % s
print "Pattern: %s" % r.pattern
t = time.time()
m = r.search(s)
print "Bench: %.2f sec" % (time.time()-t)
if m == None:
    print "No."
else:
    print "Match."