import sys; input = sys.stdin.buffer.readline
sys.setrecursionlimit(10**7)
from collections import defaultdict
con = 10 ** 9 + 7; INF = float("inf")

def getlist():
	return list(map(int, input().split()))

#処理内容
def main():
	N, M, K = getlist()
	A = getlist()
	B = getlist()
	Asum = defaultdict(int)
	Bsum = defaultdict(int)
	val1 = 0
	val2 = 0
	Asum[0] += 1
	Bsum[0] += 1
	for i in range(N):
		val1 ^= A[i]
		Asum[val1] += 1
	for i in range(M):
		val2 ^= B[i]
		Bsum[val2] += 1

	AX = defaultdict(int)
	BX = defaultdict(int)

	for i in range(1024):
		for j in range(i, 1024):
			if i == j:
				AX[0] += int((Asum[i] - 1) * Asum[i] // 2)
			else:
				AX[i ^ j] += Asum[i] * Asum[j]

	for i in range(1024):
		for j in range(i, 1024):
			if i == j:
				BX[0] += int((Bsum[i] - 1) * Bsum[i] // 2)
			else:
				BX[i ^ j] += Bsum[i] * Bsum[j]

	ans = defaultdict(int)
	for i in range(1024):
		for j in range(1024):
			ans[i ^ j] += AX[i] * BX[j]

	print(ans[K] % con)

if __name__ == '__main__':
	main()