mod=10**9+7
inv=pow(2,mod-2,mod)

def xorconv(n,X,Y):
    if n==0:
        res=[(X[0]*Y[0])%mod]
        return res
    x=[X[i]+X[i+2**(n-1)] for i in range(2**(n-1))]
    y=[Y[i]+Y[i+2**(n-1)] for i in range(2**(n-1))]
    z=[X[i]-X[i+2**(n-1)] for i in range(2**(n-1))]
    w=[Y[i]-Y[i+2**(n-1)] for i in range(2**(n-1))]
    res1=xorconv(n-1,x,y)
    res2=xorconv(n-1,z,w)
    former=[(res1[i]+res2[i])*inv for i in range(2**(n-1))]
    latter=[(res1[i]-res2[i])*inv for i in range(2**(n-1))]
    former=list(map(lambda x:x%mod,former))
    latter=list(map(lambda x:x%mod,latter))
    return former+latter

N,M,K=map(int,input().split())
a=[0]+list(map(int,input().split()))
b=[0]+list(map(int,input().split()))

for i in range(1,N+1):
    a[i]^=a[i-1]
for i in range(1,M+1):
    b[i]^=b[i-1]

dataA=[0]*1024
for i in range(N+1):
    dataA[a[i]]+=1

dataB=[0]*1024
for i in range(M+1):
    dataB[b[i]]+=1

#print(dataA[:9])
#print(dataB[:9])
A=xorconv(10,dataA,dataA)
B=xorconv(10,dataB,dataB)

#print(A[:9])
#print(B[:9])

temp=0
for i in range(N+1):
    temp=(temp+dataA[i]*(dataA[i]-1)//2)
    temp%=mod

A[0]=temp
for i in range(1,1024):
    A[i]=(A[i]*inv)%mod

temp=0
for i in range(M+1):
    temp=(temp+dataB[i]*(dataB[i]-1)//2)
    temp%=mod

B[0]=temp
for i in range(1,1024):
    B[i]=(B[i]*inv)%mod

ans=0
for i in range(1024):
    ans=(ans+A[i]*B[i^K])%mod

print(ans)