# Write your Python code here
print("Hello, Excelrs!")
marks = input("enter your marks")
print (marks)
marksInt = int('marks')
grade = ''
if marksInt <= 40:
  grade = 'D'
  elif marksInt <= 60:
    grade = 'C'
    elif marksInt <= 80:
       grade = 'B'
          else:
            grade = 'A'

            print ("your marks is")
            print(grade)