#!/usr/bin/env python2.7
"""Pretty-print JSON from stdin on stdout.
Like 'python -mjson.tool', except can handle a series of JSON objects (one per line)."""

import sys
try:
  import simplejson as json
except ImportError:
  import json

def pp(x):
  json.dump(x, sys.stdout, sort_keys=True, indent=4)
  print

def my_loads(s):
  return json.loads(s)  #, object_pairs_hook=json.OrderedDict)

line1 = sys.stdin.readline()
try:
  x = my_loads(line1)
except ValueError:
  everything = line1 + sys.stdin.read()
  pp(my_loads(everything))
  sys.exit(0)

pp(x)
for line in sys.stdin:
  pp(my_loads(line))