#include <bits/stdc++.h>
using namespace std;
void __print(int x) { cerr << x; }
void __print(long x) { cerr << x; }
void __print(long long x) { cerr << x; }
void __print(unsigned x) { cerr << x; }
void __print(unsigned long x) { cerr << x; }
void __print(unsigned long long x) { cerr << x; }
void __print(float x) { cerr << x; }
void __print(double x) { cerr << x; }
void __print(long double x) { cerr << x; }
void __print(char x) { cerr << '\'' << x << '\''; }
void __print(const char *x) { cerr << '\"' << x << '\"'; }
void __print(const string &x) { cerr << '\"' << x << '\"'; }
void __print(bool x) { cerr << (x ? "true" : "false"); }
template <typename T, typename V>
void __print(const pair<T, V> &x) {
  cerr << '{';
  __print(x.first);
  cerr << ',';
  __print(x.second);
  cerr << '}';
}
template <typename T>
void __print(const T &x) {
  int f = 0;
  cerr << '{';
  for (auto &i : x) cerr << (f++ ? "," : ""), __print(i);
  cerr << "}";
}
void _print() { cerr << "]\n"; }
template <typename T, typename... V>
void _print(T t, V... v) {
  __print(t);
  if (sizeof...(v)) cerr << ", ";
  _print(v...);
}
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  int n;
  cin >> n;
  set<pair<int, int> > s;
  for (int i = 0; i < n; ++i) {
    int l, r;
    cin >> l >> r;
    if (s.empty()) {
      s.insert({l, r});
      cout << s.size() << " ";
      continue;
    }
    int L = l, R = r;
    auto it = s.lower_bound({l, -1});
    if (it != s.begin()) {
      it = prev(it);
      if (l <= (*it).second) {
        L = (*it).first;
        R = max(R, (*it).second);
        s.erase(it);
      }
    }
    it = s.lower_bound({l, -1});
    while (true) {
      if (it == s.end()) {
        break;
      }
      if (r < (*it).first) {
        break;
      }
      if (r > (*it).second) {
        s.erase(it);
        it = s.lower_bound({l, -1});
        continue;
      }
      R = (*it).second;
      s.erase(it);
      break;
    }
    s.insert({L, R});
    cout << s.size() << " ";
    ;
  }
}
