#include <bits/stdc++.h>
using namespace std;
signed main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  long long n;
  cin >> n;
  long long a[n], b[n];
  for (long long i = 0; i < n; i++) {
    cin >> a[i] >> b[i];
  }
  for (long long i = 0; i < n; i++) {
    if (a[i] != b[i]) {
      cout << "rated";
      return 0;
    }
  }
  for (long long i = 0; i < n - 1; i++) {
    if (a[i + 1] > a[i]) {
      cout << "unrated";
      return 0;
    }
  }
  cout << "maybe";
  return 0;
}
