MOD = 998244353
N = int(input())
a = list(map(int, input().split()))
a.sort()
ls = [[0, N - 1]]
ans = 1

for k in range(29, -1, -1):
    flag = 0
    nls = []
    for l, r in ls:
        if (a[l] >> k) & 1:
            nls.append([l, r])
        elif (a[r] >> k) & 1 == 0:
            nls.append([l, r])
        else:
            for i in range(l, r):
                if (a[i + 1] >> k) & 1:
                    flag = 1
                    nls.append([l, i])
                    nls.append([i + 1, r])
                    break
    if flag:
        ans = (ans * 2) % MOD
    ls = nls

print(ans)