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 cost = 9999;

        for(int i = 0;i<n;i++){
            int c = sc.nextInt();
            int t2 = sc.nextInt();
            if(t>=t2){
                if(cost>c){
                    cost=c;
                }
            }
        }

        if(cost==9999){
            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