public static int birthday(List<Integer> s, int d, int m) {
    // Write your code here
        int result = 0;
        int count = 0;
        int i = 0;
        boolean isFinished = false;
        while (!isFinished) {
            if(s.size() == 1 && s.get(i) == d) {
                result = result + 1;
                isFinished = true;
            }
            count = s.get(i);
            for(int j = i + 1; j < i + m; j++) {
                count = count + s.get(j);
                System.out.println(j);
                if((j + 1) == s.size()) {
                    isFinished = true;
                }
            }
            if(count == d && s.size() != 1) {
                result = result + 1;
            }
            i++;
        }        
        
        return result;

    }

}