#import<iostream>
using namespace std;
int mod=998244353,now=1,N,a,b,i,j=1,ans,A[1<<20],B[1<<20];
main(){cin>>N;for(;i<N;i++){cin>>a>>b;A[a]++;A[b]++;B[i]=now;now*=2;now%=mod;}for(;j<=N;j++){ans+=B[A[j]]-(A[j]==N-1?2:0);ans%=mod;}cout<<ans;}