#!/usr/bin/python
import sys
import json
import base64

try:
    dictionary = json.load(sys.stdin)
except Exception, info:
    exit(info)
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