import sys

input_data = sys.stdin.read().split()

N = int(input_data[0])
mod = 998244353 

z = [0] * N
idx = 1
for _ in range(N - 1):
    a = int(input_data[idx]) - 1
    b = int(input_data[idx+1]) - 1
    z[a] += 1
    z[b] += 1
    idx += 2

ans = 0
for i in range(N):
    ans = (ans + pow(2, z[i], mod)) % mod
    if z[i] == N - 1:
        ans = (ans - 2 + mod) % mod
        
print(ans)