def f(A):
    a0=0
    P=defaultdict(int)
    AA=defaultdict(int)
    for a in A:
        a0^=a
        for p,val in P.items():
            AA[a0^p]+=val
            AA[a0^p]%=MOD
        P[a0]+=1
        AA[a0]+=1
    return AA

from  collections import defaultdict
MOD=10**9+7
N,M,K=map(int, input().split())
A=list(map(int, input().split()))
B=list(map(int, input().split()))

A=f(A)
B=f(B)
cnt=0
for a,val_a in A.items():
    for b,val_b in B.items():
        if a^b==K:
            cnt+=val_a*val_b
            cnt%=MOD
print(cnt)