import java.util.*;

public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    int limit = sc.nextInt();
    int cost;
    int time;
    int ans = -1;
    boolean con = true;
    
   	for(int i = 0; i < n;i++){
      cost = sc.nextInt();
      time = sc.nextInt();
      if(time <= limit){
        if(ans == -1) ans = cost;
        else if(cost < ans) ans = cost;
      	}
    }
    
    if(ans == -1) System.out.println("TLE");
    else System.out.println(ans);
  }
}

/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