몇시간 했더라

public class Main {
    public int solution(int[] arr1, int[] arr2) {
        int answer = 0;
        for(int i = 0; i<arr1.length; i++){
            if(arr2[i]>28)
                answer += 21 - arr1[i];
            else 
                answer += arr2[i] - arr1[i];
        }
        return answer;
    }

    public static void main(String[] args) {
        Main method = new Main();
        int[] arr1 = {9, 9, 9, 9, 7, 9, 8};
        int[] arr2 = {23, 23, 30, 28, 30, 23, 23};
        System.out.println(method.solution(arr1, arr2));
    }
}