#include<bits/stdc++.h>
using namespace std;
int n,x,y,i,siz[200001];
long long ans;
vector<int>v[200001];
void dfs(int x,int y){
	siz[x]=1;
	for(int i:v[x])if(i!=y)dfs(i,x),siz[x]+=siz[i];
	ans+=siz[x];
}
void solve(int x,int y,long long c){
	ans=max(ans,c);
	for(int i:v[x])if(i!=y)solve(i,x,c+n-2*siz[i]);
}
int main(){
	ios::sync_with_stdio(0);cin.tie(0);
	cin>>n;
	for(i=1;i<n;i++)cin>>x>>y,v[x].push_back(y),v[y].push_back(x);
	dfs(1,0);solve(1,0,ans);
	cout<<ans<<"\n";
}