Problem:
Score : 100 points

Problem Statement

N of us are going on a trip, by train or taxi.

The train will cost each of us A yen (the currency of Japan).

The taxi will cost us a total of B yen.

How much is our minimum total travel expense?

Constraints

All values in input are integers.

1 \leq N \leq 20

1 \leq A \leq 50

1 \leq B \leq 50

Input

Input is given from Standard Input in the following format:

N A B

Output

Print an integer representing the minimum total travel expense.

Sample Input 1

4 2 9

Sample Output 1

8

The train will cost us 4 \times 2 = 8 yen, and the taxi will cost us 9 yen, so the minimum total travel expense is 8 yen.

Sample Input 2

4 2 7

Sample Output 2

7

Sample Input 3

4 2 8

Sample Output 3

8

Solution in C# (Mono 4.6.2.0) (judge verdict: Accepted)

using System;
using System.Text;
using System.Linq;

class Program
{
    static void Main(string[] args) {
        //System.Diagnostics.Debug.WriteLine("-----TextFile1");
        //System.Diagnostics.Debug.WriteLine(process("../TextFile1.txt"));

        //System.Diagnostics.Debug.WriteLine("-----TextFile2");
        //System.Diagnostics.Debug.WriteLine(process("../TextFile2.txt"));

        String ret = process(new System.IO.StreamReader(Console.OpenStandardInput()));
        Console.WriteLine(ret);
    }

    static string processText(string input) {
        return process(new System.IO.StringReader(input));
    }

    static string process(string filePath) {
        using (var input = new System.IO.StreamReader(filePath)) {
            return process(input);
        }
    }

    static string process(System.IO.TextReader input) {
        var s     = input.ReadLine();
        var spl   = s.Split(' ');
        int n     = int.Parse(spl[0]);
        int a     = int.Parse(spl[1]);
        int b     = int.Parse(spl[2]);

        int tra = a * n;
        int tac = b;

        return Math.Min(tra,tac).ToString();
    }
}