문제 설명
Write a program that outputs the appropriate grade when KTY's score is X.
The grades for each score are as follows.
-
A++ if X is 100
-
97~99 is A+
-
A for 93-96
-
90-92 is A-
-
87-89 is B+
-
B if 83-86
-
80-82 is B-
...
-
D+ if 67~69
-
D if 63-66
-
60-62 is D-
-
F if X < 60
입력 설명
An integer X between 0 and 100 is input.
출력 설명
Print out KTY's grades.