#!/usr/bin/python3
if __name__ == '__main__':
    from sys import argv
    if len(argv) == 1:
        print("{} arguments".format(len(argv) - 1), end='')
        print(".")
    elif len(argv) == 2:
        print("{} argument".format(len(argv) - 1), end='')
        print(":")
    else:
        print("{} arguments".format(len(argv) - 1), end='')
        print(":")

    for i in range(1, len(argv)):
        print("{}: {}".format(i, argv[i]))
