Please use python to write it

Tudor, having made his own tea for far too long, has decided to go to a nearby tea shop to buy some tea As every respectable tea shop does, this specific tea shop offers a loyalty program. For every K cups of tea that Tudor buys at the shop, the shop will give him one free cup of tea. Tudor wants to drink at least N cups of tea. How many cups of tea will he have to buy in order to achieve this goal? Constraints 1sNKs10t probem In tests worth 5 marks, N Input Specification The input will consist of a single line containing two positive integers, N and K Output Specification Output, on a single line, the minimum number of cups of tea Tudor needs to buy