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Created February 2, 2015 19:41
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Codeforces Round #290 (Div. 2) A. Fox And Snake
Raw
510A.FoxAndSnake.py
#!/usr/bin/env python
# -*- encoding: utf-8 -*-
# pylint: disable=C0111
# GleanStart
#9 9
# GleanEnd
def main():
n, m = map(int, raw_input().split())
a = '.' * (m - 1)
b = '#'
c = '#' * m
for x in xrange(n):
if x % 2 == 0:
print c
else:
print "{}{}".format(a, b)
a, b = b, a
main()
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