더 크게 합치기

using System;

public class Solution {
    public int solution(int a, int b) {
        int answer = 0;
        string str1 = a.ToString() + b.ToString();
        string str2 = b.ToString() + a.ToString();
        if (int.Parse(str1)>=int.Parse(str2))
        {
         answer = int.Parse(str1);   
        }
        else answer = int.Parse(str2);

        return answer;
    }
}