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

"""
A = 1:取るしかない +1-M   手番が相手に
  = x:1残し +x-1         次も自分
    ぜんぶとる +x-M 　　手番が相手に
1が連続してるとこは圧縮できる
"""

B = []
for a in A:
    if a == 1 and B and B[-1] == 1:
        B.pop()
        continue
    B.append(a)

if not B:
    print("Second")
    exit()


def game(B, i):
    X, Y = 0, 0
    while i < len(B):
        b = B[i]
        if i + 1 < len(B) and B[i + 1] == 1:
            X += b - M
            Y += 1 - M
            i += 2
        else:
            X += b - 1
            Y += 1 - M
            i += 1
    return X, Y


X = 0
Y = 0
if B and B[0] == 1:
    X = 1 - M
    Q, P = game(B, 1)
else:
    P, Q = game(B, 1)
X += P
Y += Q
if X > Y:
    print("First")
else:
    print("Second")