#!/usr/bin/env python3
from math import inf

def lis(A):
  n = len(A)
  L = [1] * n
  for i in range(n):
    for j in range(i):
      if A[j] < A[i]:
        L[i] = max(L[i],L[j]+1)
  return max(L)

if __name__ == "__main__":
    A=[5,2,8,6,7]
    print(lis(A))