fahnub

def order(n):
    return int(''.join(sorted(n, reverse=True))), int(''.join(sorted(n)))


def subtract(n, b):
    k = len(n)
    x, y = order(n)

    difference = ""
    borrow = 0

fahnub

def solution(x, y):
    worker_id = (((x + y - 2) * (x + y - 1)) / 2) + x
    return str(worker_id)

fahnub

from math import sqrt


def get_factors(n):
    factors = set()

    for i in range(1, int(sqrt(n)) + 1):
        if n % i == 0:
            factors.update([i, n//i])