import java.util.*;
public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int t = sc.nextInt();
		int[] cost = new int[n];
		int[] time = new int[n];
		for(int i=0; i<n; i++) {
			cost[i] = sc.nextInt();
			time[i] = sc.nextInt();
		}
		int ans=0;
		for(int i=0; i<n; i++) {
			if(time[i]<=t && cost[ans]>cost[i]) {
				ans=i;
			}
		}
		if(time[ans]<=t) {
			System.out.println(cost[ans]);
		}else {
			System.out.println("TLE");
		}
	}
}
/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