676 B | 676 chars
import sys
from math import sqrt, pi, sin, factorial, ceil, floor
BLANK = " "
# inp = input
inp = lambda : sys.stdin.readline()[:-1].strip()
mii = lambda x = BLANK : [*map(int,inp().split(x))]
mfi = lambda x = BLANK : [*map(float,inp().split(x))]
ii = lambda : int(inp())
fi = lambda : float(inp())
p = print
def f(n):
cnt = 0
for i in range(1, n):
if n % i == 0:
cnt += 1
return cnt
def solve():
n, k = mii()
for i in range(n):
for j in range(n):
d = i * n + j + 1
if f(d) < k:
p(end="*")
else:
p(end=".")
p()
if __name__ == "__main__":
tc = 1
for t in range(1, tc+1):
ret = solve()