import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int t = sc.nextInt();

        int minCost = Integer.MAX_VALUE;
        for (int i = 0; i < n; i++) {
            int cost = sc.nextInt();
            int time = sc.nextInt();
            if (t >= time) {
                if (minCost >= cost) {
                    minCost = cost;
                }
            }
        }
        sc.close();

        if (minCost == Integer.MAX_VALUE) {
            System.out.println("TLE");
        } else {
            System.out.println(minCost);
            sc.close();
        }
    }
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz