AT_abc480_a [ABC480A] ADjacent

There is a grid with $ 2 $ rows and $ 2 $ columns. Each cell of the grid contains exactly one of `A`, `B`, `C`, and `D`, and the characters written in the $ 4 $ cells are distinct. The cell at the $ i $ -th row from the top and the $ j $ -th column from the left contains $ S_{i,j} $ . If the cell containing `A` and the cell containing `D` are adjacent, that is, they share an edge, print `Yes`; otherwise, print `No`.

The input is given from Standard Input in the following format: > $ S_{1,1}S_{1,2} $ $ S_{2,1}S_{2,2} $

Print the answer in a single line.

### Sample Explanation 1 `A` is written in the cell at the $ 1 $ -st row from the top and the $ 1 $ -st column from the left. `D` is written in the cell at the $ 2 $ -nd row from the top and the $ 1 $ -st column from the left. These $ 2 $ cells share an edge, so they are adjacent. ### Constraints - $ S_{i,j} $ is one of `A`, `B`, `C`, and `D`. - If $ (i_1,j_1)\neq (i_2,j_2) $ , then $ S_{i_1,j_1} $ and $ S_{i_2,j_2} $ are distinct.