class Solution:
    def timeRequiredToBuy(self , tickets: List[int], k: int) -> int:
        # write code here
        time=0
        n=len(tickets)
        for i in range(n):
            if i<=k:
                time+=min(tickets[i],tickets[k])
            else:
                time+=min(tickets[i],tickets[k]-1)
        return time