MOD = 998244353

N = int(input())
G = [[] for _ in range(N)]
for _ in range(N-1):
    u, v = map(int, input().split())
    u, v = u-1, v-1
    G[u].append(v)
    G[v].append(u)

POW = [1]
for _ in range(N):
    POW.append(POW[-1]*2%MOD)

ans = 0
for i in range(N):
    ans += POW[len(G[i])]
    ans %= MOD
    if 1+len(G[i]) == N:
        ans -= 2
        ans %= MOD

print(ans)