Problem: We often go to supermarkets to buy some fruits or vegetables, and on the tag there prints the price for a kilo. But in some supermarkets, when asked how much the items are, the clerk will say that a yuan for b kilos (You don't need to care about what "yuan" is), the same as a/b yuan for a kilo.

Now imagine you'd like to buy m kilos of apples. You've asked n supermarkets and got the prices. Find the minimum cost for those apples.

You can assume that there are enough apples in all supermarkets.

Input

The first line contains two positive integers n and m (1 ≤ n ≤ 5 000, 1 ≤ m ≤ 100), denoting that there are n supermarkets and you want to buy m kilos of apples.

The following n lines describe the information of the supermarkets. Each line contains two positive integers a, b (1 ≤ a, b ≤ 100), denoting that in this supermarket, you are supposed to pay a yuan for b kilos of apples.

Output

The only line, denoting the minimum cost for m kilos of apples. Please make sure that the absolute or relative error between your answer and the correct answer won't exceed 10^{-6}.

Formally, let your answer be x, and the jury's answer be y. Your answer is considered correct if \frac{|x - y|}{max{(1, |y|)}} ≤ 10^{-6}.

Examples

Input

3 5
1 2
3 4
1 3


Output

1.66666667


Input

2 1
99 100
98 99


Output

0.98989899

Note

In the first sample, you are supposed to buy 5 kilos of apples in supermarket 3. The cost is 5/3 yuan.

In the second sample, you are supposed to buy 1 kilo of apples in supermarket 2. The cost is 98/99 yuan.

Solution (in JAVA):

Solution:
import java.io.*;
import java.util.*;

import static java.lang.Math.*;
import static java.util.Collections.*;
import static java.util.Arrays.*;

public class Main {
    /**
     * Solution
     */
    static class Solution {
        public void solve(Scanner in, PrintWriter out) {
            long n = in.nextLong();
            long m = in.nextLong();
            long a, b;
            double min = Double.MAX_VALUE;
            for (int i = 0; i < n; i++) {
                a = in.nextLong();
                b = in.nextLong();
                min = min(min, ((double) a / (double) b) * (double) m);
            }
            out.print(min);
        }
    }

    public static void main(String[] args) {
        boolean onlineJudge = System.getProperty("ONLINE_JUDGE") != null;
        if (onlineJudge) {
            InputStream inputStream = System.in;
            OutputStream outputStream = System.out;
            Scanner inputReader = new Scanner(inputStream);
            PrintWriter printWriter = new PrintWriter(outputStream);
            Solution solution = new Solution();
            solution.solve(inputReader, printWriter);
            printWriter.close();
        } else {
            InputStream inputStream = null;
            try {
                inputStream = new FileInputStream("./src/com/company/Files/in.txt");
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            }
            OutputStream outputStream = System.out;
            Scanner inputReader = new Scanner(inputStream);
            PrintWriter printWriter = new PrintWriter(outputStream);
            Solution solution = new Solution();
            byte test = 1;
            while (true) {
                try {
                    if (!inputReader.bufferedReader.ready()) break;
                } catch (IOException e) {
                    e.printStackTrace();
                }
                printWriter.print("Test#" + test + ":\n");
                solution.solve(inputReader, printWriter);
                printWriter.print("\n\n");
                test++;
            }
            printWriter.close();
        }
    }

    private static class Scanner {
        private BufferedReader bufferedReader;
        private StringTokenizer stringTokenizer;

        private Scanner(InputStream inputStream) {
            bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
            stringTokenizer = null;
        }

        public String next() {
            while (stringTokenizer == null || !stringTokenizer.hasMoreTokens()) {
                try {
                    stringTokenizer = new StringTokenizer(bufferedReader.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return stringTokenizer.nextToken();
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }


        public long nextLong() {
            return Long.parseLong(next());
        }

        public double nextDouble() {
            return Double.parseDouble(next());
        }

    }
}