using System;
public class Program
{
private static void PrintCharactersNeedToBeRemovedForAnagram(string str1, string str2) {
int TotalABCLetters = 26;
int[] count1 = new int[TotalABCLetters];
int[] count2 = new int[TotalABCLetters];
int size1 = str1.Length;
int size2 = str2.Length;
// count char frequency str1
for (int i = 0; i < size1; i++) {
count1[str1[i] - 'a']++;
}
// count char frequency str2
for (int i = 0; i < size2; i++) {
count2[str2[i] - 'a']++;
}
for (int i = 0; i < TotalABCLetters; i++) {
if (Math.Abs(count1[i] - count2[i]) != 0) {
Console.Write((char)(i + 'a') + " ");
}
}
}
public static void Main(string[] args)
{
string str1 = "masterfx";
string str2 = "ksampret";
PrintCharactersNeedToBeRemovedForAnagram(str1, str2);
}
}
/*
run:
f k p x
*/