import java.util.Scanner;

public class Main {

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		int b = sc.nextInt();
		
		int c[][] = new int[a][2];
		
		for (int i=0; i<a; i++){
			c[i][0] = sc.nextInt();
			c[i][1] = sc.nextInt();
		}
		
		boolean flg = false;
		int cost = 0;
		for (int i=0; i<a; i++){
			
			if (c[i][1] <= b){
				if ((cost == 0) || (c[i][0] <= cost)){
					cost = c[i][0];
					flg = true;
				}
			}
		}
		
		if (flg){
			System.out.println(cost);
		}
		else {
			System.out.println("TLE");
		}
		return;
		
		
	}
	
}

/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