N,M=map(int,input().split())
A=list(map(int, input().split()))
B=list(map(int, input().split()))
if set(A) == {1} and len(A)%3==1:
    g1=0
    for i in range(M):
        g1^=B[i]
    if g1==0:
        print("Second")
    else:
        print("First")
    exit()
f = False
for i in range(N):
    if A[i] > 1:
        f = True
if f:
    g1=0
    for i in range(N):
        g1^=A[i]
    if g1!=0:
        print("First")
        exit()
else:
    g1=0
    for i in range(N):
        g1^=A[i]
    if g1!=1:
        print("First")
        exit()
g2=0
for i in range(N):
    g2^=A[i]
if g2!=0:
    print("First")
    exit()
else:
    print("Second")
    exit()