N = int(input())
A = [list(input()) for _ in range(N)]

if N == 1:
    exit(print("Yes"))

cnt = sum(a.count("#") for a in A)
if cnt == 0:
    print("Yes")
elif N%2 == 1:
    print("Yes")
elif cnt%2 == 0:
    print("Yes")
else:
    print("No")