import sys, random
input = lambda : sys.stdin.readline().rstrip()


write = lambda x: sys.stdout.write(x+"\n"); writef = lambda x: print("{:.12f}".format(x))
debug = lambda x: sys.stderr.write(x+"\n")
YES="Yes"; NO="No"; pans = lambda v: print(YES if v else NO); INF=10**18
LI = lambda : list(map(int, input().split())); II=lambda : int(input())
def debug(_l_):
    for s in _l_.split():
        print(f"{s}={eval(s)}", end=" ")
    print()
def dlist(*l, fill=0):
    if len(l)==1:
        return [fill]*l[0]
    ll = l[1:]
    return [dlist(*ll, fill=fill) for _ in range(l[0])]

n = int(input())
a = list(map(int, input().split()))
a = list(set(a))
dp = [a]
ans = 1
M = 998244353
for b in range(32)[::-1]:
    ndp = []
    ok = 0
    for item in dp:
        vs = [[], []]
        for v in item:
            vs[v>>b&1].append(v)
        if vs[0] and vs[1]:
            ok = 1
        if vs[0]:
            ndp.append(vs[0])
        if vs[1]:
            ndp.append(vs[1])
    if ok:
        ans *= 2
        ans %= M
print(ans%M)