You have recently been hired by some students taking a Statistics class to help them on the homework. One of the problems in the textbook requires them to make a program that takes in a set of n numbers and return some statistical analyses about the set, specifically the mean of the numbers. Unfortunately, they do not know how to program and require your expertise in the matter!
Input Format
First line contains n, a non-zero integer, representing the total number of following lines. Each other line represents an element in the set.
Sample Input
3
3
4
5
Output Format Assuming that all ouputs are integers, print out the mean
Sample Output
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