import sys
import json
import pprint

def main() -> None:

    file1 = sys.argv[1]
    file2 = sys.argv[2]
    data1 = load_data(file1)
    data2 = load_data(file2)

    for key in sorted(set(data1.keys()).union(data2.keys())):
        value1 = data1.get(key, '')
        value2 = data2.get(key, '')
        if value1 != value2:
            print(f"{key}: '{value1}' != '{value2}'")


def load_data(filename: str) -> dict[str, str]:
    with open(filename, 'r') as f:
        data = {
            x["Variable_name"]: x["Value"]
            for x in json.load(f)["SHOW GLOBAL VARIABLES"]
        }
    return data

if __name__ == '__main__':
    main()