intproblem.py

#!/bin/python3

from sys import argv

N = 5

def f(xs):
    return list(filter(lambda x: x < N, xs))

def main():
    if len(argv) <= 1:
        exit(1)

    numbers = [int(x) for x in argv[1:]]
    result = f(numbers)

    print(result)

if __name__ == "__main__":
    main()