import java.util.*;

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 (time <= t) {
				if (cost < minCost) {
					minCost = cost;
				}
			}
		}
		if (minCost == Integer.MAX_VALUE) {
			System.out.println("TLE");
		} else {
			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