#### 문제 링크
https://programmers.co.kr/learn/courses/30/lessons/81301
function solution(s) {
  return Number(
           s.replace(/zero/g, '0')
            .replace(/one/g, '1')
            .replace(/two/g, '2')
            .replace(/three/g, '3')
            .replace(/four/g, '4')
            .replace(/five/g, '5')
            .replace(/six/g, '6')
            .replace(/seven/g, '7')
            .replace(/eight/g, '8')
            .replace(/nine/g, '9')
    	 )
}