import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

class Main {
	public static void main(String args[]) throws IOException {
		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
		Solver solver = new Solver();
		solver.init();
		solver.readHead(in.readLine());
		for (; solver.hasNext();) {
			solver.readBody(in.readLine());
		}
		solver.solve();
	}
}

class Solver {
	int N;
	int cnt;

	public void init() {
		N = 0;
		cnt = 0;
	}

	public void readHead(String str) {
		String[] strArr = str.split(" ");
		N = Integer.parseInt(strArr[0]);
		// System.out.println(N);
		T = Integer.parseInt(strArr[1]);
	}

	int T;
	int C = 0;

	public boolean hasNext() {
		return cnt < N;
	}

	public void readBody(String str) {
		// System.out.println(str);
		cnt++;
		String[] strArr = str.split(" ");
		int c = Integer.parseInt(strArr[0]);
		int t = Integer.parseInt(strArr[1]);
		if (t <= T && (C == 0 || c < C))
			C = c;
	}

	public void solve() {
		if (C == 0)
			System.out.println("TLE");
		else
			System.out.println(C);

	}
} import java.io.BufferedReader; BufferedReader java.io import java.io.IOException; IOException java.io import java.io.InputStreamReader; InputStreamReader java.io class Main {
	public static void main(String args[]) throws IOException {
		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
		Solver solver = new Solver();
		solver.init();
		solver.readHead(in.readLine());
		for (; solver.hasNext();) {
			solver.readBody(in.readLine());
		}
		solver.solve();
	}
} Main public static void main(String args[]) throws IOException {
		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
		Solver solver = new Solver();
		solver.init();
		solver.readHead(in.readLine());
		for (; solver.hasNext();) {
			solver.readBody(in.readLine());
		}
		solver.solve();
	} main {
		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
		Solver solver = new Solver();
		solver.init();
		solver.readHead(in.readLine());
		for (; solver.hasNext();) {
			solver.readBody(in.readLine());
		}
		solver.solve();
	} BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); in new BufferedReader(new InputStreamReader(System.in)) Solver solver = new Solver(); solver new Solver() solver.init() solver.init solver solver.readHead(in.readLine()) solver.readHead solver in.readLine() in.readLine in for (; solver.hasNext();) {
			solver.readBody(in.readLine());
		} ; solver.hasNext() solver.hasNext solver {
			solver.readBody(in.readLine());
		} {
			solver.readBody(in.readLine());
		} solver.readBody(in.readLine()) solver.readBody solver in.readLine() in.readLine in solver.solve() solver.solve solver String args[] args class Solver {
	int N;
	int cnt;

	public void init() {
		N = 0;
		cnt = 0;
	}

	public void readHead(String str) {
		String[] strArr = str.split(" ");
		N = Integer.parseInt(strArr[0]);
		// System.out.println(N);
		T = Integer.parseInt(strArr[1]);
	}

	int T;
	int C = 0;

	public boolean hasNext() {
		return cnt < N;
	}

	public void readBody(String str) {
		// System.out.println(str);
		cnt++;
		String[] strArr = str.split(" ");
		int c = Integer.parseInt(strArr[0]);
		int t = Integer.parseInt(strArr[1]);
		if (t <= T && (C == 0 || c < C))
			C = c;
	}

	public void solve() {
		if (C == 0)
			System.out.println("TLE");
		else
			System.out.println(C);

	}
} Solver int N; N int cnt; cnt int T; T int C = 0; C 0 public void init() {
		N = 0;
		cnt = 0;
	} init {
		N = 0;
		cnt = 0;
	} N = 0 N 0 cnt = 0 cnt 0 public void readHead(String str) {
		String[] strArr = str.split(" ");
		N = Integer.parseInt(strArr[0]);
		// System.out.println(N);
		T = Integer.parseInt(strArr[1]);
	} readHead {
		String[] strArr = str.split(" ");
		N = Integer.parseInt(strArr[0]);
		// System.out.println(N);
		T = Integer.parseInt(strArr[1]);
	} String[] strArr = str.split(" "); strArr str.split(" ") str.split str " " N = Integer.parseInt(strArr[0]) N Integer.parseInt(strArr[0]) Integer.parseInt Integer strArr[0] strArr 0 T = Integer.parseInt(strArr[1]) T Integer.parseInt(strArr[1]) Integer.parseInt Integer strArr[1] strArr 1 String str str public boolean hasNext() {
		return cnt < N;
	} hasNext {
		return cnt < N;
	} return cnt < N; cnt < N cnt N public void readBody(String str) {
		// System.out.println(str);
		cnt++;
		String[] strArr = str.split(" ");
		int c = Integer.parseInt(strArr[0]);
		int t = Integer.parseInt(strArr[1]);
		if (t <= T && (C == 0 || c < C))
			C = c;
	} readBody {
		// System.out.println(str);
		cnt++;
		String[] strArr = str.split(" ");
		int c = Integer.parseInt(strArr[0]);
		int t = Integer.parseInt(strArr[1]);
		if (t <= T && (C == 0 || c < C))
			C = c;
	} cnt++ cnt String[] strArr = str.split(" "); strArr str.split(" ") str.split str " " int c = Integer.parseInt(strArr[0]); c Integer.parseInt(strArr[0]) Integer.parseInt Integer strArr[0] strArr 0 int t = Integer.parseInt(strArr[1]); t Integer.parseInt(strArr[1]) Integer.parseInt Integer strArr[1] strArr 1 if (t <= T && (C == 0 || c < C))
			C = c; t <= T && (C == 0 || c < C) t <= T t T (C == 0 || c < C) C == 0 C 0 c < C c C C = c C c String str str public void solve() {
		if (C == 0)
			System.out.println("TLE");
		else
			System.out.println(C);

	} solve {
		if (C == 0)
			System.out.println("TLE");
		else
			System.out.println(C);

	} if (C == 0)
			System.out.println("TLE");
		else
			System.out.println(C); C == 0 C 0 System.out.println("TLE") System.out.println System.out System System.out "TLE" System.out.println(C) System.out.println System.out System System.out C
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

class Main {
	public static void main(String args[]) throws IOException {
		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
		Solver solver = new Solver();
		solver.init();
		solver.readHead(in.readLine());
		for (; solver.hasNext();) {
			solver.readBody(in.readLine());
		}
		solver.solve();
	}
}

class Solver {
	int N;
	int cnt;

	public void init() {
		N = 0;
		cnt = 0;
	}

	public void readHead(String str) {
		String[] strArr = str.split(" ");
		N = Integer.parseInt(strArr[0]);
		// System.out.println(N);
		T = Integer.parseInt(strArr[1]);
	}

	int T;
	int C = 0;

	public boolean hasNext() {
		return cnt < N;
	}

	public void readBody(String str) {
		// System.out.println(str);
		cnt++;
		String[] strArr = str.split(" ");
		int c = Integer.parseInt(strArr[0]);
		int t = Integer.parseInt(strArr[1]);
		if (t <= T && (C == 0 || c < C))
			C = c;
	}

	public void solve() {
		if (C == 0)
			System.out.println("TLE");
		else
			System.out.println(C);

	}
}
