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#!/usr/bin/python -tt

import json
import sys

# take json in
# return keys from data if they exist



def main():
   infile = sys.stdin
   obj = json.load(infile)
   ret = 0
   for name in sys.argv[1:]:
       if type(obj) != dict:
           print >> sys.stderr, "No dict found"
           sys.exit(1)
       if name in obj:
           print '%s:%s' % (name,obj.get(name, None))
       else:
           print >> sys.stderr, "No key %s found" % name
           ret = 1
   return ret      
   
if __name__ == '__main__':
    sys.exit(main())