import urllib.request

API_URL = 'https://zeapi.yandex.net/lab/api/yalm/text3'

payload = {"text":"bebra"}

params = json.dumps(payload).encode('utf8')

req = urllib.request.Request(API_URL_2, data=params, headers=headers)

response = urllib.request.urlopen(req)

obj = json.loads(response.read())['predictions']

n = 0

while n <= 0:

    n = int(input("Enter the number of lines: "))

for i in range(1, n+1):

    print('*' * i)

n = 0

while n <= 0:

    n = int(input("Enter the number of lines: "))

for i in range(1, n+1):

    for j in range(1, i+1):

        print('*', end='')

    print()

x = 3

print(x)

let test = [];

def choose_best_sum(t, k, ls):

    most = 0

​

    for i in range(len(ls)-1):

        addN = 0

        if i +k > len(ls) - 1:

            break

        for j in range(i,i+k-1):

            addN += ls[j]

        for p in range(i+k-1,len(ls)-1):

            addN += ls[p]

            if addN > most and addN <= t:

                most = addN

                addN -= ls[p]

            else:

                addN -= ls[p]

    if most == 0:

        return None

    return most

if g == 0:

        return [1] * len(originCities)

    if g >= n:

        return [0] * len(originCities)

    components = {i: i for i in range(g + 1, n + 1)}

    for candidate in range(g + 1, n + 1):

        current = [t * candidate for t in range(1, n // candidate + 1)]

        current_components = [components[e] for e in current]

        minone = min(current_components)

        for curr in current:

            components[curr] = minone

    res = []

    for k in range(len(originCities)):

        origin, destination = originCities[k], destinationCities[k]

        if origin > g and destination > g and components[origin] == components[destination]:

            res.append(1)

        else:

            res.append(0)

    return res

function solution(arr) {

  if (arr && arr.length > 0) {

    let visitedNum = new Set();

​

    let result = arr.every((num) => {

      if (visitedNum.has(num - 1) || visitedNum.has(num + 1)) {

        return 0;

      }

​

      visitedNum.add(num);

​

      return 1;

    });

​

    return !result;

  }

​

  return 0;

}

l=int(input())

arr=list(map(int, input().split()))

arr=list(set(arr))

length_list=len(arr)

​

arr.sort()

​

#print("set = ",arr)

#print("length of set: ",length_list)

​

print(arr[length_list-2])

def ArrayMatching(strArr):

  x = [int(i) for i in strArr[0][1:-1].split(',')]

  y = [int(i) for i in strArr[1][1:-1].split(',')]

  sums = []

​

  for i in range(max(len(x), len(y))):

    total = 0

    if i < len(x):

      total += x[i]

    if i < len(y):

      total += y[i]

    sums.append(str(total))

  return '-'.join(sums)

def StringPeriods (s):

​

for i in range (int (len (s)/2), 0,-1):

​

a = s[i] count = 2

​

b = "

​

while len (b)

​

b = a * count

​

if b == s:

​

return a

​

len(s):

​

count += 1

​

return -1