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 Go (1.6) (judge verdict: Accepted)

package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
)

func main() {
	s := wordScanner()

	var n, a, b int
	scanInts(s, &n, &a, &b)

	fmt.Println(min(a*n, b))
}

func wordScanner() *bufio.Scanner {
	s := bufio.NewScanner(os.Stdin)
	s.Split(bufio.ScanWords)
	return s
}

func scanInts(s *bufio.Scanner, vals ...*int) {
	for i := range vals {
		s.Scan()
		n, _ := strconv.Atoi(s.Text())
		*vals[i] = n
	}
}

func scanStrings(s *bufio.Scanner, vals ...*string) {
	for i := range vals {
		s.Scan()
		*vals[i] = s.Text()
	}
}

func min(x, y int) int {
	if x < y {
		return x
	}
	return y
}