python.py

def take_first_n(lst, f, n):
    ret_lst = []
    for element in lst:
      if (n == 0):
        break
      if (f(element)):
        ret_lst.append(element)
        n = n - 1
    return ret_lst

print(take_first_n([1,2,3,4,5],lambda x: x % 2 == 0,2))