import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
    Scanner sc = new Scanner(System.in);
     int i = sc.nextInt();
     int j = sc.nextInt();
int c = 1000;
int count =0;
        for(int k =0;k<i;k++){

     int x = sc.nextInt();
     int  y = sc.nextInt();
     if(j >= y){
     
     
     if(c > x){

        c =x;
      } 
     
count = 1;

      }
}
if(count == 1){
   System.out.println(c);
    }

if(count == 0){
   System.out.println("TLE");
    }
}

}

/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