import java.util.*;
import java.math.*;
import java.lang.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		// 整数の入力
		int n = sc.nextInt();
		int t = sc.nextInt();
		int minCost = 1001;
		boolean flag = false;

		for(int i=0;i<n;i++){
			int c = sc.nextInt();
			int tx = sc.nextInt();
			if(t>=tx){
				flag = true;
				minCost = Math.min(c,minCost);
			}
		}
			
		if(!flag){

			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