import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Scanner;

class Main{
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int maxTime = sc.nextInt();
        List<Integer> costs = new ArrayList<Integer>();

        for (int i = 0; i < n; i++) {
            int cost = sc.nextInt();
            int time = sc.nextInt();

            if (time <= maxTime)
                costs.add(cost);
        }

        if (costs.size() == 0) {
            System.out.println("TLE");
        } else {
            Collections.sort(costs);
            int minCost = costs.get(0);
            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