import java.util.Scanner;

public class Main {
  public static void main (String[] args) {
    Scanner in = new Scanner(System.in);

    while (in.hasNext()) {
      int N = in.nextInt();
      int T = in.nextInt();
      int minCost = Integer.MAX_VALUE;

      while (N-- > 0) {
        int c = in.nextInt();
        int t = in.nextInt();

        if (t <= T) {
          minCost = Math.min(minCost, c);
        }
      }

      if (minCost == Integer.MAX_VALUE) {
        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