import java.util.ArrayList;
import java.util.List;
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();
        List<Integer> cList = new ArrayList<>();
        List<Integer> tList = new ArrayList<>();
        for (int i = 0; i < n; i++) {
            cList.add(sc.nextInt());
            tList.add(sc.nextInt());
        }
        Integer minCost = null;
        for (int i = 0; i < n; i++) {
            if (tList.get(i) > t) {
                continue;
            }
            int cost = cList.get(i);
            if (minCost == null || cost < minCost) {
                minCost = cost;
            }
        }
        if (minCost == null) {
            System.out.println("TLE");
            return;
        }
        System.out.println(minCost);
    }

}

/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