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 minCost = 1001;
        for(int i=0; i<n; i++){
            int cost = sc.nextInt();
            int time = sc.nextInt();
            if(t >= time){
                if(minCost > cost) minCost = cost;
            }
        }
        if(minCost == 1001) System.out.println("TLE");
        else System.out.println(minCost);
    }
}
/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