#include <bits/stdc++.h>
using namespace std;
const int N = 1e5;
int n;
long long x, m, ans;
long long f() {
  long long a, b, q;
  q = (x - 1) % 4;
  a = q == 0 ? x - 1 : q == 1 ? 1 : q == 2 ? x : 0;
  q = (x + m - 1) % 4;
  b = q == 0 ? x + m - 1 : q == 1 ? 1 : q == 2 ? x + m : 0;
  return a ^ b;
}
int main() {
  scanf("%d", &n);
  for (int i = 0; i < n; ++i) {
    scanf("%lld %lld", &x, &m);
    ans ^= f();
  }
  if (ans)
    puts("tolik");
  else
    puts("bolik");
  return 0;
}
