from functools import cache

N = int(input())
P = [input() for i in range(N)]

@cache
def X(l, r):
  if l == r: return P[l-1]
  return P[l-1] == X(l + 1, r) and "Yes" or "No"

for r in range(1, N+1):
  print(X(1, r))