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: Accepted)

#include <stdio.h>
int main(void)
{
int N,A,B;
 scanf("%d" , &N);
 scanf("%d" , &A);
 scanf("%d" , &B);
if(1<=N && N<=20 && 1<=A && A<=50 && 1<=B && B<=50)
{
	if((A*N)>B)
	{
	 printf("%d\n",B);
	}
	else if((A*N)<B)
	{
	 printf("%d\n",A*N);
	}
	else
	{
	 printf("%d\n",B);
	}
}
else
{
	printf("制約を守っていません。\n");
}
return 0;
}