#! /usr/bin/env python3

import sys
import json

metadata = json.load(sys.stdin)

for info in metadata:
    if 'reader' in info:
        reader = info['reader']
        if 'firstPage' in reader:
            first_page = reader['firstPage']
            reader['pageNames'] = {str(first_page): '1'}
            del reader['firstPage']

print(json.dumps(metadata, sort_keys=False, indent=2, ensure_ascii=False))