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[] allList = new int[2*N];
    for(int i = 0; i < 2*N; i++){
      allList[i] = sc.nextInt();
    }
    int cost = 10001; 
    for(int i = 1; i < 2*N; i+=2){
      if(allList[i] <= T && allList[i-1]<cost){
        cost = allList[i-1];
      }
    }
    
    if(cost == 10001){
      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