from bisect import bisect_right

def main():
    N = int(input())
    A = list(map(int, input().split()))
    INF = 10 ** 18
    last_max = A[0]
    last_min = A[0]

    money = 1000
    stock = 0
    old_trend = 0
    trend = A[1] - A[0]
    buy_point = []
    bought_point = []

    for i in range(N-1):
        trend = A[i+1] - A[i]
        if trend * old_trend > 0 or trend == 0:
            continue
        else:
            if trend > 0:
                buy_point.append(i)
            if trend < 0:
                bought_point.append(i)
        old_trend = trend

    if len(buy_point) > len(bought_point):
        bought_point.append(N-1)

    for i in range(N):
        if i in buy_point:
            buy = money//A[i]
            stock += buy
            money -= buy*A[i]

            nx_bought_idx = bisect_right(bought_point,i)
            bought_value = A[nx_bought_idx]
            j = i - 1
            while j >= 0 and money >= 100:
                if A[j] < bought_value and money < A[i]:
                    money -= A[j]
                    stock += 1
                    break
                j -= 1
        
        if i in bought_point:
            bought = stock
            stock = 0
            money += bought * A[i]
    print(money)
    


if __name__ == "__main__":
    main()