A. Fox And Snaketime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputFox Ciel starts to learn programming. The first task is drawing a fox! However, that turns out to be too hard for a beginner, so she decides to draw a snake instead.A snake is a pattern on a n by m table. Denote c-th cell of r-th row as (r, c). The tail of the snake is located at (1, 1), then it's body extends to (1, m), then goes down 2 rows to (3, m), then goes left to (3, 1) and so on.Your task is to draw this snake for Fox Ciel: the empty cells should be represented as dot characters ('.') and the snake cells should be filled with number signs ('#').Consider sample tests in order to understand the snake pattern.InputThe only line contains two integers: n and m (3 ≤ n, m ≤ 50). n is an odd number.OutputOutput n lines. Each line should contain a string consisting of m characters. Do not output spaces.ExamplesInput3 3Output###..####Input3 4Output####...#####Input5 3Output###..#####..###Input9 9Output#########........###########........#########........###########........#########
Input3 3
Output###..####
['implementation', '*800']