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;

namespace Atcoder
{
    class Program
    {
        static void Main(string[] args)
        {


			//テンプレート
			//// 整数の入力
			//int a = int.Parse(Console.ReadLine());
			//// スペース区切りの整数の入力
			//string[] input = Console.ReadLine().Split(' ');
			//int b = int.Parse(input[0]);
			//int c = int.Parse(input[1]);
			//// 文字列の入力
			//string s = Console.ReadLine();
			////出力
			//Console.WriteLine(a + b + c + " " + s);

			string[] input = Console.ReadLine().Split(' ');
			int N = int.Parse(input[0]);
			int A = int.Parse(input[1]);
			int B = int.Parse(input[2]);

			int cost_taxi = B;
			int cost_train = N * A;
			int cost_min;

			if (cost_train >= cost_taxi)
				cost_min = cost_taxi;
			else
				cost_min = cost_train;

			Console.WriteLine(cost_min);
			Console.ReadLine();

        }
    }
}