<filename>04_conditional.py
marks = int(input("Enter your marks: \n"))

if marks>=90 and marks<=100:
    print("You got Excellent grade!")
elif marks>=80 and marks<90:
    print("You got A grade!")
elif marks>=70 and marks<80:
    print("You got B grade!")
elif marks>=60 and marks<70:
    print("You got C grade!")
elif marks>=50 and marks<60:
    print("You got D grade!")
else:
    print("You'r fail")


