import java.util.Scanner;

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

	int n= sc.nextInt(),T=sc.nextInt();
	int min = 1010;


	for(Integer i=0; i<n;i++) {
		int c=sc.nextInt();
		int t=sc.nextInt();

		if(t<=T) {
			if(c<min) {
				min=c;

			}
		}
	}
	System.out.println(min<=1000?min:"TLE");
	}
}
/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