# program to compute pay; done at theend of class on Jan 2019
#
# Given the number of hours worked, the rate of pay per hour, and
# the overtime multiplier, compute the amount of pay
#
# Matt Bishop, MHI 289I, Winter 2019
try:
    hours = int(input("Number of hours worked> "))
    payperhour = float(input("How much money per hour of work> "))
    overfactor = float(input("What is the overtime work factor> "))
except:
    print("One of what you typed is wrong -- numbers, please!")
else:
    # sanity check #1: hours worked must be non-negative
    if hours < 0:
        print("You worked negative hours? (You said", hours, ")")
    # sanity check #2: rate of pay per hour must be non-negative
    if payperhour < 0:
        print("You paid them to work for them? (You said", payperhour, ")")
    # sanity check #3: increase in pay for overtime must be positive
    if overfactor < 1:
        print("Overtime is less than regular hours (You said", overfactor, ")")

    # figure out the numbers of regular hours and overtime hours
    overtime = hours - 40
    if overtime > 0:
        regular = 40
    elif overtime < 0:
        overtime = 0
        regular = hours

    # now compute the pay for regular and overtime work
    # and add it together to get the total
    regpay = regular * payperhour
    overpay = overtime * payperhour * overfactor
    total = regpay + overpay

    # now print out the result
    print("You worked", regular, "hours of regular time and", overtime, end=" ")
    print("hours of overtime; your pay is $%.2f" % total)