Distributing Candies

You are tasked with distributing candies to children at a party in such a way that each child receives at least one candy. Given a list of children's sweetness preferences, your goal is to distribute candies such that the total sweetness of the candies distributed is maximized, while ensuring that each child receives a different amount of sweetness. Write a function that takes as input a list of integers, where each integer represents a child's sweetness preference. Your function should output the maximum total sweetness you can distribute to the children. Input: - A single line containing integers `pref[0], pref[1], ..., pref[n-1]` (1 <= len(pref) <= 100 and 1 <= pref[i] <= 100). Output: - An integer representing the maximum total sweetness that can be distributed. Example: Input: 1 2 3 3 1 Output: 8 In this case, distributing candies with 1, 2, 3, 4, and 5 sweetness levels would maximize the total sweetness.