import os
import sys

#1.3
ENV = sorted(os.environ.items())

def filter_dict(filtered_dict, strings):
    result = dict()
    for k,v in filtered_dict.items():
        if any(x in k for x in strings):
            result[k] = v
    return result

def print_dict(printed_dict):
    for k,v in printed_dict.items():
        print(k + ": " + v, sep="\n")

def main():
    print(ENV)
    #1.1
    print('zmienne środowiskowe:')
    print_dict(ENV)

    #1.2
    filter_strings = sys.argv[1:]
    print('zmienne środowiskowe filtrowane przez:', ", ".join(filter_strings))
    print_dict(filter_dict(ENV, filter_strings))


if __name__ == "__main__":
    main()