797 B | 797 chars
import sys
from math import sqrt, pi, sin, factorial, ceil, floor
from datetime import datetime, timedelta
sys.setrecursionlimit(10**7)
BLANK = " "
#inp = input
inp = lambda : sys.stdin.readline().rstrip()
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 solve():
ans = []
r, c = mii()
mp = [input() for _ in range(r)]
for x in range(c):
cost = 0
for y in range(r):
if mp[y][x] == 'X':
ans.append(cost)
break
if mp[y][x] == 'H':
cost += 3
else:
cost += 1
else:
ans.append('N')
return ans
tc = ii()
for t in range(1, tc+1):
ret = solve()
p(f"Data Set {t}:")
p(*ret)
p()