N, M = map(int, input().split())
A = list(map(int, input().split()))
B = list(map(int, input().split()))

g = 0
f = 1
for a in A:
  if a > 1:
    f = 0
  g ^= a

# Aが逆Nimで先手必勝
if (f == 0 and g > 0) or (f == 1 and g == 0):
  print("First")

# 後手必勝
else:
  # わざと負けれる
  if f == 0:
    print("Second")
  else:
    g = 0
    for b in B:
      g ^= b
    if g > 0:
      print("First")
    else:
      print("Second")