import time
from datetime import date


def what_week_day(year, month, day):
    return date(year, month, day).weekday()




def calc_working_day(x, year, month, day):
    day = 5 - what_week_day(year, month, day) - 1
    var = x / 5
    mod = x % 5

    if mod > day:
        var += 1

    return var*2+x


print calc_working_day(5, 2016, 9, 5)