N, Q = map(int, input().split()) A = tuple(map(int, input().split())) S = input() T = map(int, input().split()) MAX = 31 dp0 = [0] * MAX dp1 = [0] * MAX cur0 = 0 cur1 = (1 << MAX) - 1 for a, s in zip(A, S): if s == "0": diff0 = cur0 - (cur0 & a) cur0 &= a diff1 = cur1 - (cur1 & a) cur1 &= a else: diff0 = (cur0 | a) - cur0 cur0 |= a diff1 = (cur1 | a) - cur1 cur1 |= a for i in range(MAX): dp0[i] += (diff0 >> i) & 1 dp1[i] += (diff1 >> i) & 1 for t in T: ans = 0 for i in range(MAX): if (t >> i) & 1: ans += dp1[i] << i else: ans += dp0[i] << i print(ans)