#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (n); i++)
#define all(x) (x).begin(), (x).end()
using ll = long long;
using pii = pair<int, int>;
using vi = vector<int>;
using vvi = vector<vector<int>>;
const ll inf = 1e9;

int tree[100005];
vi to[100005];

void add(int i,int a){
  int u=i+tree[0];
  tree[u]+=a;
  while(u>1){
    u/=2;
    tree[u]=min(tree[u*2],tree[u*2+1]);
  }
}

void update(int i,int a){
  int u=i+tree[0];
  tree[u]=a;
  while(u>1){
    u/=2;
    tree[u]=min(tree[u*2],tree[u*2+1]);
  }
}

int mini(){
  int u=1;
  while(u<tree[0]){
    if(tree[1]==tree[u*2]) u=u*2;
    else u=u*2+1;
  }
  return u-tree[0];
}

int main() {
  ll n;
  cin>>n;
  tree[0]=1;
  while(tree[0]<n) tree[0]*=2;
  for(int u=tree[0]+n;u<tree[0]*2;u++) tree[u]=inf;
  rep(i,n-1){
    int u,v;
    cin>>u>>v;
    u--;v--;
    to[u].push_back(v);
    to[v].push_back(u);
    tree[u+tree[0]]++;
    tree[v+tree[0]]++;
  }
  // rep(i,tree[0]) cout<<tree[i+tree[0]]<<" ";
  // cout<<endl;

  for(int u=tree[0]-1;u>=1;u--) tree[u]=min(tree[u*2],tree[u*2+1]);
  int ans=1;
  while(tree[1]==1){
    int d=0;
    int i=mini();
    for(int j:to[i]) if(tree[j+tree[0]]!=inf){
      d=j;
      break;
    }
    i=d;
    ans+=tree[i+tree[0]]-1;
    // cout<<i<<endl;
    update(i,inf);
    for(int j:to[i]){ 
      int u=j+tree[0];
      if(tree[u]==inf) continue;
      if(tree[u]==1) update(j,inf);
      else add(j,-1);
      }
    // rep(i,n) cout<<tree[i+tree[0]]<<" ";
    // cout<<endl;
  }
  cout<<ans<<endl;
  return 0;
}