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