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>
#include <stdlib.h>
#include <math.h>


int main(){

    long int l,r;
    long int i,j;
    long int min;
    long int tmp;

    scanf("%ld %ld",&l,&r);



        for(i = l; i < r; i++){
         for(j = i+1 ; j <= r ; j++){
                tmp = (i*j)%2019;
               if(tmp < min){
                 min = tmp;
                
               }
               if(min == 0)
                break;
           }
           if(min == 0)
                break;
        }
    
    printf("%ld\n",min); 
    
    return 0;
}