import java.util.*;
import java.io.*;

class Main
{
	public static void main( String[] args )
	{
		Main m = new Main();
		m.B();
	}

	void B()
	{
		Scanner in = new Scanner(System.in);
		int n = in.nextInt(), t = in.nextInt(), inf = Integer.MAX_VALUE;
		int cost = inf;
		for(int i = 0; i < n; i++)
		{
			int ci = in.nextInt(), ti = in.nextInt();
			if(ti <= t)
			{
				cost = Math.min(cost, ci);
			}
		}
		if(cost == inf) System.out.println("TLE");
		else System.out.printf("%d\n", cost);
	}

	void A()
	{
		Scanner in = new Scanner(System.in);
		int n = in.nextInt();
		if(n == 1) System.out.println("Hello World");
		if(n == 2)
		{
			int a = in.nextInt(), b = in.nextInt();
			System.out.println(a + b);
		}
	}

	// int numWays(int k)
	// {
	// 	if(k < 3) return 1;
		
	// }


	// static int B(String str)
	// {
	// 	int cur = Integer.valueOf(str);
	// 	for(int i = 111; i <= 999; i += 111)
	// 		if(cur <= i) return i;
	// 	return cur;	// should not execute this line
	// }

	// static String update(String str)
	// {
	// 	char[] ch = str.toCharArray();
	// 	for(int i = 0; i < 3; i++)
	// 	{
	// 		if(ch[i] == '1') ch[i] = '9';
	// 		else ch[i] = '1';
	// 	}
	// 	return String.valueOf(ch);
	// }

} import java.util.*; util.* java import java.io.*; io.* java class Main
{
	public static void main( String[] args )
	{
		Main m = new Main();
		m.B();
	}

	void B()
	{
		Scanner in = new Scanner(System.in);
		int n = in.nextInt(), t = in.nextInt(), inf = Integer.MAX_VALUE;
		int cost = inf;
		for(int i = 0; i < n; i++)
		{
			int ci = in.nextInt(), ti = in.nextInt();
			if(ti <= t)
			{
				cost = Math.min(cost, ci);
			}
		}
		if(cost == inf) System.out.println("TLE");
		else System.out.printf("%d\n", cost);
	}

	void A()
	{
		Scanner in = new Scanner(System.in);
		int n = in.nextInt();
		if(n == 1) System.out.println("Hello World");
		if(n == 2)
		{
			int a = in.nextInt(), b = in.nextInt();
			System.out.println(a + b);
		}
	}

	// int numWays(int k)
	// {
	// 	if(k < 3) return 1;
		
	// }


	// static int B(String str)
	// {
	// 	int cur = Integer.valueOf(str);
	// 	for(int i = 111; i <= 999; i += 111)
	// 		if(cur <= i) return i;
	// 	return cur;	// should not execute this line
	// }

	// static String update(String str)
	// {
	// 	char[] ch = str.toCharArray();
	// 	for(int i = 0; i < 3; i++)
	// 	{
	// 		if(ch[i] == '1') ch[i] = '9';
	// 		else ch[i] = '1';
	// 	}
	// 	return String.valueOf(ch);
	// }

} Main public static void main( String[] args )
	{
		Main m = new Main();
		m.B();
	} main {
		Main m = new Main();
		m.B();
	} Main m = new Main(); m new Main() m.B() m.B m String[] args args void B()
	{
		Scanner in = new Scanner(System.in);
		int n = in.nextInt(), t = in.nextInt(), inf = Integer.MAX_VALUE;
		int cost = inf;
		for(int i = 0; i < n; i++)
		{
			int ci = in.nextInt(), ti = in.nextInt();
			if(ti <= t)
			{
				cost = Math.min(cost, ci);
			}
		}
		if(cost == inf) System.out.println("TLE");
		else System.out.printf("%d\n", cost);
	} B {
		Scanner in = new Scanner(System.in);
		int n = in.nextInt(), t = in.nextInt(), inf = Integer.MAX_VALUE;
		int cost = inf;
		for(int i = 0; i < n; i++)
		{
			int ci = in.nextInt(), ti = in.nextInt();
			if(ti <= t)
			{
				cost = Math.min(cost, ci);
			}
		}
		if(cost == inf) System.out.println("TLE");
		else System.out.printf("%d\n", cost);
	} Scanner in = new Scanner(System.in); in new Scanner(System.in) int n = in.nextInt() n in.nextInt() in.nextInt in t = in.nextInt() t in.nextInt() in.nextInt in inf = Integer.MAX_VALUE; inf Integer.MAX_VALUE Integer Integer.MAX_VALUE int cost = inf; cost inf for(int i = 0; i < n; i++)
		{
			int ci = in.nextInt(), ti = in.nextInt();
			if(ti <= t)
			{
				cost = Math.min(cost, ci);
			}
		} int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
			int ci = in.nextInt(), ti = in.nextInt();
			if(ti <= t)
			{
				cost = Math.min(cost, ci);
			}
		} {
			int ci = in.nextInt(), ti = in.nextInt();
			if(ti <= t)
			{
				cost = Math.min(cost, ci);
			}
		} int ci = in.nextInt() ci in.nextInt() in.nextInt in ti = in.nextInt(); ti in.nextInt() in.nextInt in if(ti <= t)
			{
				cost = Math.min(cost, ci);
			} ti <= t ti t {
				cost = Math.min(cost, ci);
			} cost = Math.min(cost, ci) cost Math.min(cost, ci) Math.min Math cost ci if(cost == inf) System.out.println("TLE");
		else System.out.printf("%d\n", cost); cost == inf cost inf System.out.println("TLE") System.out.println System.out System System.out "TLE" System.out.printf("%d\n", cost) System.out.printf System.out System System.out "%d\n" cost void A()
	{
		Scanner in = new Scanner(System.in);
		int n = in.nextInt();
		if(n == 1) System.out.println("Hello World");
		if(n == 2)
		{
			int a = in.nextInt(), b = in.nextInt();
			System.out.println(a + b);
		}
	} A {
		Scanner in = new Scanner(System.in);
		int n = in.nextInt();
		if(n == 1) System.out.println("Hello World");
		if(n == 2)
		{
			int a = in.nextInt(), b = in.nextInt();
			System.out.println(a + b);
		}
	} Scanner in = new Scanner(System.in); in new Scanner(System.in) int n = in.nextInt(); n in.nextInt() in.nextInt in if(n == 1) System.out.println("Hello World"); n == 1 n 1 System.out.println("Hello World") System.out.println System.out System System.out "Hello World" if(n == 2)
		{
			int a = in.nextInt(), b = in.nextInt();
			System.out.println(a + b);
		} n == 2 n 2 {
			int a = in.nextInt(), b = in.nextInt();
			System.out.println(a + b);
		} int a = in.nextInt() a in.nextInt() in.nextInt in b = in.nextInt(); b in.nextInt() in.nextInt in System.out.println(a + b) System.out.println System.out System System.out a + b a b
import java.util.*;
import java.io.*;

class Main
{
	public static void main( String[] args )
	{
		Main m = new Main();
		m.B();
	}

	void B()
	{
		Scanner in = new Scanner(System.in);
		int n = in.nextInt(), t = in.nextInt(), inf = Integer.MAX_VALUE;
		int cost = inf;
		for(int i = 0; i < n; i++)
		{
			int ci = in.nextInt(), ti = in.nextInt();
			if(ti <= t)
			{
				cost = Math.min(cost, ci);
			}
		}
		if(cost == inf) System.out.println("TLE");
		else System.out.printf("%d\n", cost);
	}

	void A()
	{
		Scanner in = new Scanner(System.in);
		int n = in.nextInt();
		if(n == 1) System.out.println("Hello World");
		if(n == 2)
		{
			int a = in.nextInt(), b = in.nextInt();
			System.out.println(a + b);
		}
	}

	// int numWays(int k)
	// {
	// 	if(k < 3) return 1;
		
	// }


	// static int B(String str)
	// {
	// 	int cur = Integer.valueOf(str);
	// 	for(int i = 111; i <= 999; i += 111)
	// 		if(cur <= i) return i;
	// 	return cur;	// should not execute this line
	// }

	// static String update(String str)
	// {
	// 	char[] ch = str.toCharArray();
	// 	for(int i = 0; i < 3; i++)
	// 	{
	// 		if(ch[i] == '1') ch[i] = '9';
	// 		else ch[i] = '1';
	// 	}
	// 	return String.valueOf(ch);
	// }

}