Need done Monday night 3/8/21! thank you in advance

In C programming: Given a list of individuals, how much they spent, and a value ratio for the currency, sort the individuals from greatest to least in terms of paid value. Input will begin with a line containing 1 integer, n, representing the number of paying customers. The following n lines will each contain a description of a customer. The i-th of which contains a single name followed by two space separated non-negative integers, t and b, representing the number of tokens and the number of bills the i-th person paid respectively. The last line of input will contain 2 integers a and b, which represent the exchange rate between the two currencies "a tokens is worth b bills." Each name will have at least one character and at most 20 characters, and will not contain whitespace characters. Avoid using ints to prevent overflow, use long long ints to allow for 64 bits of precision. Try to store the people into a struct that stores their units, name, etc. Please use a merge or quick sort. Sample input: 5 John 3 10 Jacob 7 7 Rob 5 8 Nancy 4 5 Phil 11 4 10 13 Sample output: Phil Jacob Rob John Nancy Explanation: 10 tokens are worth 13 bills. We can say that each token is worth 13 units and each bill is worth 10 units. We find out how many units each person has: John has 3 tokens and 10 bills which equates to 3 * 13 + 10 * 10 units = 139 units. Jacob has 7 tokens and 7 bills which equates to 7 * 13 + 7 * 10 units = 161 units. Rob has 5 tokens and 8 bills which equates to 5 * 13 + 8 * 10 units = 145 units. Nancy has 3 tokens and 10 bills which equates to 4 * 13 + 5 * 10 units = 102 units. Phil has 3 tokens and 10 bills which equates to 11 * 13 + 4 * 10 units = 183 units.