#include<bits/stdc++.h>
using namespace std;

using lnt = long long;
using Real = long double;

#define ALL(obj) (obj).begin(),(obj).end()
#define RALL(obj) (obj).rbegin(),(obj).rend()
#define REP(i, n) for(lnt i=0;i<(n);++i)
#define RANGE(i, a, b) for(lnt i=(a);i<(b);++i)
#define RREP(i, n) for(lnt i=(n)-1;i>= 0;--i)

#define ln '\n'
#define pb push_back
#define eb emplace_back
#define pque priority_queue
#define umap unordered_map
#define uset unordered_set
#define dcout cout<<fixed<<setprecision(20)
#define summon_tourist cin.tie(0);ios::sync_with_stdio(false)

constexpr int dx[]={1,0,-1,0,1,1,-1,-1}, dy[]={0,-1,0,1,1,-1,1,-1};
constexpr Real eps = 1e-9; const Real pi = acosl(-1);
constexpr lnt BIG = INT_MAX/10, BBIG = LLONG_MAX/10;

template<class T> inline T GCD(T a,T b){T c;while(b!=0){c=a%b;a=b;b=c;}return a;}
template<class T> inline T LCM(T a,T b){T c=GCD(a,b);a/=c;return a*b;}
template<class T> inline T nCr(T a,T b){T i,r=1;for(i=1;i<=b;i++){r*=(a+1-i);r/=i;}return r;}
template<class T> inline T nHr(T a,T b){return nCr(a+b-1,b);}
template<class T> inline bool chmax(T& a,T b){if(a<b){a=b;return 1;}return 0;}
template<class T> inline bool chmin(T& a,T b){if(a>b){a=b;return 1;}return 0;}

using pint = pair<int, int>; using plnt = pair<lnt, lnt>;
using vint = vector<int>; using vlnt = vector<lnt>;
constexpr lnt MOD = 1e9+7;

int main(){
	summon_tourist;

	lnt N, M, K, A[200010], B[200010];
	A[0] = 0, B[0] = 0;
	cin >> N >> M >> K;
	REP(i, N) cin >> A[i+1];
	REP(i, M) cin >> B[i+1];
	REP(i, N) A[i+1] ^= A[i];
	REP(i, M) B[i+1] ^= B[i];

	map<lnt, lnt> aa, bb;
	REP(i, N+1) aa[A[i]]++;
	REP(i, M+1) bb[B[i]]++;

	lnt ans = 0;
	REP(ka, 1024){
		lnt kb = K xor ka;
		lnt cnta = 0, cntb = 0;
		REP(kaa, 1024){
			if(ka == 0) cnta += (aa[kaa] * (aa[(ka xor kaa)]-1)) % MOD;
			else cnta += (aa[kaa] * aa[(ka xor kaa)]) % MOD;
			cnta %= MOD;
		}
		cnta *= 500000004; cnta %= MOD;
		REP(kab, 1024){
			if(kb == 0) cntb += (bb[kab] * (bb[(kb xor kab)]-1)) % MOD;
			else cntb += (bb[kab] * bb[(kb xor kab)]) % MOD;
			cntb %= MOD;
		}
		cntb *= 500000004; cntb %= MOD;
		ans += (cnta*cntb) % MOD;
		ans %= MOD;
	}
	// 0 1 3 0
	// 0 3 7 2
	cout << ans << ln;
}