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 min = 1001;
        for(int i=0;i<n;i++){
            int c = sc.nextInt();
            int time = sc.nextInt();
            
            if(time<=t){
                min = Math.min(c, min);
            }
        }
        
        
        System.out.println(min>1000 ? "TLE" : min);
     }
}
/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