# Write your Python code here

gradelist = []

st1 = {
  name: "st1"
  div: "B"
}

class Student:
  name,
  marks,
  div
  grade

  def isFailed():
    return marks < 40

  def beh1():

  def beh2():


st1 = Student("st1", 16, 'A',...)
st1.isFailed()

st2 = Student("st1", 16, 'A',...)
st3 = Student("st1", 16, 'A',...)
st4 = Student("st1", 16, 'A',...)


def showTopper():
  topper = gradelist[0]
  print("Topper",topper)

def showfailed():
  failed = gradelist[1]
  print("Failed",failed)

def isFailed(st1):
    return st1["marks"] < 40

def getGrade(marks):
  grade = ''

  if marks < 40:
    grade = "D"
  if marks < 60:
    grade = "C"
  if marks < 80:
    grade = "B"
  else:
    grade = "A"

  return grade


for i in range(4):
  name = input("Enter your name: ")
  print(name)
  marks = int(input("Enter your marks: "))
  print(marks)

  grade = getGrade(marks)

  print("Your grade is: ", grade)

  gradelist.append({"Name": name, "Grade": grade})

print("Gradelist",gradelist) 

showFailed()