#include <cstdio>

#define int long long

using namespace std;

int n, x, m, ans;

inline int min(int a, int b) {return a < b ? a : b;}

int calc(int x) {

	int tmp = x % 4;

	if (!tmp) return x;

	else if (tmp == 1) return 1;

		else if (tmp == 2) return x + 1;

			else if (tmp == 3) return 0;

}

int run(int x, int m) {

	return calc(x - 1) ^ calc(x + m - 1);

}

//int run(int x, int m) {

//	int tmp = (x - 1) / 4 + 1, res = 0;

//	for (int i = x; i < min(x + m, tmp * 4); i++) res ^= i;

//	tmp = (x + m - 1) / 4;

//	for (int i = tmp * 4; i <= x + m - 1; i++) res ^= i;

//	return res;

//}

signed main() {

	scanf("%lld", &n);

	while (n--) {

		scanf("%lld%lld", &x, &m);

		ans ^= run(x, m);

	}

	if (ans) puts("tolik");

	else puts("bolik");

	return 0;

}