Description 　　FJ出去砍木材去了，把N(2<=N<=100,000)头牛留在家中吃草，当他回来的时候，发现奶牛们都跑到花园里吃花去了，为了减少损失，FJ打算把牛移到牛棚中去。 　　每头牛的位置离牛棚需要Ti分钟(1<=Ti<=2,000,000)，而且在等待被移走的过程中，每分钟破坏Di(1<=Di<=100)朵花，无论多么努力FJ一次只能移动一只奶牛，移动一只奶牛到牛棚需要2×

[Usaco2007 Jan]Protecting the Flowers 护花 Description Farmer John went to cut some wood and left N (2 <= N <= 100,000) cows eating the grass, as usual. When he returned, he found to his horror that t