using System; using System.Collections.Generic; using System.Linq; public class Solution { public string solution(string X, string Y) { string answer; bool allZeros = true; bool[] num = new bool[Y.Length]; for(int i = 0; i < Y.Length; ++i) { num[i] = false; } char[] x = X.ToCharArray(); char[] y = Y.ToCharArray(); List nums = new List(); for(int i = 0; i < x.Length; ++i) { for(int j = 0; j < y.L..