#!/usr/bin/env python
import random
import re
w=raw_input()
p=list('x'*len(w)+'C'*int((341-len(w))/3+1))
random.shuffle(p)
i=(c for c in w)
print ''.join(i.next() if c=='x' else chr(3)+'%02d' % random.randrange(2,15) for c in ['C']+p)