Question
This code is in Python: Fox Ciel starts to learn programming. The first task is drawing a fox! However, that turns out to be too
This code is in Python:
Fox 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.
Input
The only line contains two integers: n and m (3n,m50).
n is an odd number.
Output
Output n lines. Each line should contain a string consisting of m characters. Do not output spaces.
Examples
input
Copy
3 3
output
Copy
### ..# ###
input
Copy
3 4
output
Copy
#### ...# ####
input
Copy
5 3
output
Copy
### ..# ### #.. ###
input
Copy
9 9
output
Copy
######### ........# ######### #........ ######### ........# ######### #........ #########
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