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[] c = new int[N];
		int[] t = new int[N];
		int cost = 2000;
		for(int i=0;i<N;i++) {
			c[i] = sc.nextInt();
			t[i] = sc.nextInt();
			if(t[i]<=T) {
				cost = Math.min(cost, c[i]);
			}
		}
		if(cost==2000) {
			System.out.println("TLE");
		}else {
			System.out.println(cost);
		}
		
	}
}
/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