124나라의숫자 https://programmers.co.kr/learn/courses/30/lessons/12899
function solution(n) {
var answer = "";
var temp = n;
while (temp > 0) {
if (temp % 3 === 0) {
answer = "4" + answer;
temp = temp / 3 - 1;
} else if (temp % 3 === 1) {
answer = "1" + answer;
temp = Math.floor(temp / 3);
} else {
answer = "2" + answer;
temp = Math.floor(temp / 3);
}
}
return answer;
}