class Solution {
    public String intToRoman(int num) {
        String[] romans = {"M", "CM", "D", "CD", "C", "XC", "L", "XL", "X", "IX", "V", "IV", "I"};
        int[] nums = {1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1};

        // 2496
        // MMCDXCVI
        StringBuilder sb = new StringBuilder();
        int index = 0;
        while (num > 0){
            int count = num / nums[index];
            num = num % nums[index];
            for (int i = 0; i < count; i++){
                sb.append(romans[index]);
            }
            index++;
        }

        return sb.toString();
    }
}