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.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp1
{

    class Program
    {
        static void Main(string[] args)
        {
            var s = Console.ReadLine().Split(' ');
            var ds = new int[3];
            for (int i = 0; i < 3; i++)
            {
                ds[i] = int.Parse(s[i]);
            }
            Console.WriteLine(Math.Min(ds[0] * ds[1], ds[2]));
            /*
            int count = 0;
            Array.Sort(ds);
            if (ds.Length % 2 == 1)
            {
                Console.WriteLine(0);
            }
            else if (ds[ds.Length / 2 - 1] == ds[ds.Length / 2])
            {
                Console.WriteLine(0);
            }
            else
            {
                Console.WriteLine(ds[ds.Length / 2] - ds[ds.Length / 2 - 1]);
            }
            */

            

#if DEBUG
            Console.WriteLine("続行するには何かキーを押してください．．．");
            Console.ReadKey();
#endif
        }
    }
}