There are some adults and kids going to a zoo.The fee is 80 yuan for an adult and 60 yuan for a kid.And there is a group ticket about 350 yuan for 4 adults and 2 kids.No full can also buy group ticket.

Input until EOF.
There are two integers a(0<=a<=100000) and b(0<=b<=100000) in one line.a means the number of adults,b means the number of kids.

You should output the minimum fee they should pay.