[백준] 1614번 : 영식이의 손가락 - Java(자바)

https://www.acmicpc.net/problem/1614

import java.util.Scanner;
public class Main {
    public static void main(String args[]) {
        Scanner s=new Scanner(System.in);
        long n=s.nextInt();
        long m=s.nextInt();
        long num=0;
        if(n==1) num+=8*m;
        else if(n==5) num+=8*m+4;
        else{
            if(m%2==1) num+=5-n;
            else num+=n-1;
            num+=4*m;
        }
        System.out.print(num);
    }
}