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 (GCC 5.4.1) (judge verdict: Wrong Answer)

#include<stdio.h>

//N人で旅行しようとしており、その交通手段として電車とタクシーがあります。電車を使うと 1人あたりA
//円かかります。
//タクシーを使うと N人でB円かかります。全員の交通費の合計は最小でいくらになるでしょうか。

main(){
  int  a,b,n;
  scanf("%d %d %d",&a,&b,&n);
  
  if (n*a>b){
    printf("%d",b);
  }
  else{
    printf("%d",a*n);
  }
}