#!/usr/bin/python

import json
import sys
import yaml

fn=''
if len(sys.argv) > 1:
    fn = sys.argv[1]
if len(fn) > 0:
    infile = open(fn, 'r')
else:
    infile = sys.stdin

raw=infile.read()

#print raw
instruct = json.loads(raw)

blacklist = ['typeID', 'vTypeID', 'varsUsedLater', 'varsValid']

def Filter(instruct, layer):
    
    if type(instruct) == dict:
        out = {}
        #print "<- %s %d\n" % (instruct, layer)
        for oneKey in sorted(instruct): #.keys(): 
            if not oneKey in blacklist:
                if type(instruct[oneKey]) == dict:
                    out[oneKey] = Filter(instruct[oneKey], layer + 1)
                elif type(instruct[oneKey]) == list:
                    out[oneKey] = Filter(instruct[oneKey], layer + 1)
                else:
                    out[oneKey] = instruct[oneKey]
            #else:
                #print "BLACKLIST %d\n" % (layer)
        #print "-> %s %d\n" % (out, layer)
        return out
    elif type(instruct) == list:
        out = []
        for item in instruct:
            if type(item) == dict:
                out.append(Filter(item, layer + 1))
            elif type(item) == list:
                out.append(Filter(item, layer + 1))
            else:
                out.append(item)
        return out
    else:
        return instruct


        

filtered = Filter(instruct, 0)
#print "---------"
#print filtered
# print json.dumps(instruct, indent=4, sort_keys=True)
print yaml.safe_dump(filtered, default_flow_style=False)