assignment 4 ques 1.py

marks = int(input("Enter marks: "))

if marks < 25:
    print("Grade: F")
elif marks >= 25 and marks < 45:
    print("Grade: E")
elif marks >= 45 and marks < 50:
    print("Grade: D")
elif marks >= 50 and marks < 60:
    print("Grade: C")
elif marks >= 60 and marks < 80:
    print("Grade: B")
else:
    print("Grade: A")