import json
import yaml

file_in = input()
file_out = input()
if not file_out:
    file_out = file_in + ".YAML.txt"
with open(file_in, 'r', encoding='utf-8') as json_in, open(file_out, "w", encoding='utf-8') as yaml_out:
    json_object = json.load(json_in)
    yaml.dump(json_object, yaml_out)