|Author:||A. Klenin||Time limit:||1 sec|
|Input file:||input.txt||Memory limit:||256 Mb|
A game development company has started prototyping a new game, which is played on a field based on a hexagonal grid. The first task is to display a part of the grid in the player's viewport. To speed up the prototyping phase, it was decided to use text-based representation instead of graphics.
The hexagonal grid is composed of nearly perfect hexagons with the side of N characters. In every hexagon, the top and the bottom sides are composed of N "_" characters (ASCII 95), the right-top and the left-bottom sides are composed of N "\" characters (ASCII 92), the left-top and the right-bottom sides are composed of N "/" characters (ASCII 47). All other characters of the field are "." (ASCII 46).
The grid is assumed to be infinite, with the position (0; 0) corresponding to the leftmost character of the top side of a hexagon. The player's viewport is a rectangle displaying some part of the field.
You program must, given the coordinates x, y of the top left corner of the viewport and w, h — the viewport width and height, output the content of the viewport.
Input file contains integers N x y w h.
Output file must contain h lines of w characters each — the viewport content.
1 ≤ N ≤ 100, 0 ≤ x, y ≤ 109, 1 ≤ w, h ≤ 100
|No.||Input file (
||Output file (|