#include <bits/stdc++.h>
using namespace std;
template <class TH>
void _dbg(const char *sdbg, TH h) {
  cerr << sdbg << "=" << h << "\n";
}
template <class TH, class... TA>
void _dbg(const char *sdbg, TH h, TA... a) {
  while (*sdbg != ',') cerr << *sdbg++;
  cerr << "=" << h << ",";
  _dbg(sdbg + 1, a...);
}
long long test;
long long n, maybe, maks = 1000000007;
void solve() {
  cin >> n;
  for (long long i = 1; i <= (n); ++i) {
    long long a, b;
    cin >> a >> b;
    if (a != b) {
      cout << "rated";
      return;
    }
    if (maks < a) {
      maybe = 1;
    }
    maks = min(maks, a);
  }
  if (maybe) {
    cout << "unrated";
  } else {
    cout << "maybe";
  }
  return;
}
int32_t main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  cout.precision(10);
  cout << fixed;
  test = 1;
  while (test--) {
    solve();
  }
  return 0;
}
