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class Solution {
    public long solution(String numbers) {
        long answer = 0;
        String[] strs = {"one", "two", "three", "four", "five", "six", "seven", "eight", "nine"};
        String[] nums = {"1", "2", "3", "4", "5", "6", "7", "8", "9"};

        for(int i = 0; i < nums.length; i++){
            numbers = numbers.replaceAll(strs[i], nums[i]);
        }
        answer = (long)Integer.parseInt(numbers);
        return answer;

    }
}