백준 #32215번 코드마스터 2024

import java.util.Scanner;
public class Main {
	public static void main(String[] args) {
		
		Scanner sc = new Scanner(System.in);
		
		int n = sc.nextInt();
		int m = sc.nextInt();
		int k = sc.nextInt();
		
		System.out.println((k + 1) * m);
		sc.close();
	}
}