Description
This is a basic question.
Imagine you are a chef preparing for a royal banquet. You have a variety of ingredients needed for the dishes. However, you want to organize these ingredients in a specific way. Write a program to help you with this task.
Input
Input one line, with each ingredient separated by commas.
Output
Count the frequency of each ingredient, then sort the ingredients by frequency in ascending order. Finally, output the ingredients whose frequencies are odd, along with their respective frequencies.