from collections import defaultdict

MOD = 998244353
N = int(input())

adj = defaultdict(list)
for _ in range(N-1):
    a, b = map(lambda x: int(x)-1, input().split())
    adj[a].append(b)
    adj[b].append(a)

ans = 0
for i in range(N):
    nch = len(adj[i])
    ans += pow(2, nch, MOD)
    if nch == N-1:
        ans -= 2

    ans %= MOD

print(ans)