import java.util.Scanner;

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

        int min_cost=-1;
        for( int i=0; i< count; i++ ) {
            int n = scanner.nextInt();
            int t = scanner.nextInt();
            if( t <= time ) {
                if( min_cost == -1 || min_cost > n )
                min_cost = n;
            }
        }
        if( min_cost == -1 ) {
            System.out.println("TLE");
        } else {
            System.out.println(min_cost);
        }
    }
}
/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