#Write a program to prompt for a score between 0.0 and 1.0. If the score is out of range, print an error. 
#If the score is between 0.0 and 1.0, print a grade using the following table:
#Score Grade
#>= 0.9 A
#>= 0.8 B
#>= 0.7 C
#>= 0.6 D
#< 0.6 F
#If the user enters a value out of range, print a suitable error message and exit. For the test, enter a score of 0.85.


score = input("Enter Score: ")
sc=float(score)
if 1.0>sc>=0.9:
    print("A")
elif 0.9>sc>=0.8:
    print("B")
elif 0.8>sc>=0.7:
    print("C")
elif 0.7>sc>=0.6:
    print("D")
elif 0.0<sc<0.6:
    print("F")
else:
    print("Grade does not exists")
