n = int(input())
g = [[] for _ in range(n)]
for i in range(n-1):
    u, v = map(int, input().split())
    u -= 1
    v -= 1
    g[u].append(v)
    g[v].append(u)
ans = 0
mod = 998244353
for i in range(n):
    ans += pow(2, len(g[i]), mod)
    ans %= mod
if list(map(len, g)).count(1) == n-1:
    print(ans-2)
    exit()
print(ans)