Apple Orchard

Problem Statement Jason and his dad own an apple orchard of size N x M. And every fall he would help his father pick apples for the production of cider. But the cider press can take only K kilograms a day due to its small size. Every day he would pick apples only in a special sub-rectangle which has size S x T where Sat least K kilograms of apples.. Input The first line of the input contains in