Fibonacci Strings

int[] map = new int[26];
        map[1] = 1;
        for (int i = 2; i < map.length; i++) {
            map[i] = map[i - 1] + map[i - 2];
        }

        String text = "MAN";

        char[] chars = text.toCharArray();

        int sum = 0;
        for (int i = 0; i < chars.length; i++) {
            char c = chars[i];
            int x = c - 65; // A=65 => A=0
            sum += map[x];
        }
        System.out.println(sum);