Find the Runner-Up Score!

'''Given the participants' score sheet for your University Sports Day, you are required to find the runner-up score.
You are given  scores. Store them in a list and find the score of the runner-up.'''
'''this is for testing purpose only'''
'''So basically in this question you'll have an array with scores of n students you'll need to find out the runner up
you'll convert the array into set so it will remove all the duplicate values and then again convert it into list print the second last element after sorting it'''

if __name__ == '__main__':
    n = int(input())
    arr = map(int, input().split())
    scoreList=list(set(arr))
    scoreList.sort()
    print(
        scoreList[-2]
    )