#include <bits/stdc++.h> 
using namespace std; 
#define l long 
#define r(i,m,n) for(l i=m;i<n;i++) 
#define V(K,L,N,S) vector<L> K(N,S)
#define D(K,L,N,M,S) vector<vector<L>> K(N,vector<L>(M,S))
#define m 1000000007
#define n 1024
int main(){l N,M,K,s=0;cin>>N>>M>>K;V(P,l,N+1,0);V(Q,l,M+1,0);r(i,1,N+1)cin >> P[i];r(i,1,M+1)cin >> Q[i];r(i,1,N+1)P[i]^=P[i-1];r(i,1,M+1)Q[i]^=Q[i-1];D(A,l,n,2,0);D(B,l,n,2,0);r(i,0,N+1)A[P[i]][0]++;r(i,0,M+1)B[Q[i]][0]++;r(i,0,n)r(j,i,n){if(i==j)A[0][1]=(A[0][1]+A[i][0]*(A[i][0]-1)/2%m)%m;else A[i^j][1]=(A[i^j][1]+A[i][0]*A[j][0]%m)%m;}r(i,0,n)r(j,i,n){if(i==j)B[0][1]=(B[0][1]+B[i][0]*(B[i][0]-1)/2%m)%m;else B[i^j][1]=(B[i^j][1]+B[i][0]*B[j][0]%m)%m;}r(i,0,n)s=(s+A[i][1]*B[K^i][1]%m)%m;cout<<s<<endl;}