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();
   
   List<Integer> cost = new ArrayList<>();
   int c = 0;
   int t = 0;
   for(int i =0;i<N;i++) 
   {
     c = sc.nextInt();
     t = sc.nextInt();
     
     if(t<=T) cost.add(c);
   }
   
   if(cost.size() == 0) System.out.println("TLE");
   else 
   {
     Collections.sort(cost);
     System.out.println(cost.get(0));
   }
 }
}
/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