#!/usr/bin/env python2
import sys
import json
import base64

try:
    dictionary = json.load(sys.stdin)
except Exception:
    exit()
for filename in sys.argv[1:]:
    components = filename.split('.')
    extension = components[len(components) - 1]
    try:
        data = base64.b64decode(dictionary[extension])
        f = open(filename, 'w')
        f.write(data)
        f.close()
    except KeyError:
        print('No', extension, 'available')
    except OSError:
        print('Could not write to', filename)
    else:
        print(extension, 'saved to', filename)