noAdults = int(raw_input("How many adults will come? "))
noChildren = int(raw_input("How many children will come? "))
ticketCost = int(raw_input("How much will the ticket be? "))
icecreamPrice = 19.99
beerPrice = 12.99

ticketTotal = ticketCost * (noAdults + noChildren)
shoppingTotal = noAdults * (icecreamPrice + 4 * beerPrice) + noChildren * (2 * icecreamPrice)

print "You will be left with:", ticketTotal - shoppingTotal