Like many, Bessie is concerned with popularity. In some things, she wants to be just like all the other cows.
She has tabulated a sorted list of the number of ounces of milk (1 <= ounces <= 10,000) that each of the N (2 <= N <= 20,000) cows gives each day. She wants to know which number appears most often in the list and is just positive that the number is unique.

Line 1: A single integer: N
Lines 2..N+1: Line i contains a single integer that is the ounces of milk given by cow i.

Line 1: The number that appears most often in the input list

5
512
532
532
585
599

532

Five cows, each giving 512-599 ounces of milk.
532 appears twice; the other numbers appear but once