#include<cstdio>
const long long mod = 1e9+7;
long long countA[2048], countB[2048];
long long map[2048];
int a[200005], b[200005];

void preWork(int seq[],int n,long long count[]){
    for(int i = 0; i < 1024; i++) map[i] = count[i] = 0;
    map[0] = 1;
    int prefix = 0;
    for(int i = 1; i <= n; i++){ 
        int u = prefix^seq[i]; prefix = u;
        for(int j = 0; j < 1024; j++){
            count[j] += map[u^j]; if(count[j]>=mod) count[j] -= mod;
        }
        map[u]++; 
    }
}

int main(){
    int n,m,k;
    scanf("%d%d%d",&n,&m,&k);
    for(int i = 1; i <= n; i++) scanf("%d",&a[i]);
    preWork(a,n,countA);
    //for(int i = 0; i < 1024; i++) if(countA[i]!=0) printf("countA[%d] = %lld\n",i,countA[i]);
    for(int i = 1; i <= m; i++) scanf("%d",&b[i]);
    preWork(b,m,countB);
    //for(int i = 0; i < 1024; i++) if(countB[i]!=0) printf("countB[%d] = %lld\n",i,countB[i]);
    long long ans = 0;
    for(int i = 0; i < 1024; i++){
        ans += countA[i]*countB[k^i]; if(ans>=mod) ans -= mod;
    }
    printf("%lld\n",ans);
    return 0;
}