N = int(input())
A = list(map(int, input().split()))
MOD = 998244353
A.sort()

state = [(0, N-1)]
ans = 1
for i in range(29, -1, -1):
    res = 1
    nstate = []
    for l, r in state:
        if (A[l] >> i) & 1 == (A[r] >> i) & 1:
            nstate.append((l, r))
            continue
        res = 2
        mid = 0
        for j in range(l, r):
            if (A[j] >> i) & 1 < (A[j+1] >> i) & 1:
                mid = i
                nstate.append((l, mid))
                nstate.append((mid+1, r))
                break
    state = nstate
    ans *= res

print(ans % MOD)