LogiQuest

326. Grade Calculator

EasyConditionals

Print the grade for each mark: 90–100 → A, 80–89 → B, 70–79 → C, 60–69 → D, below 60 → F.

Input format

Line 1: n Line 2: n marks (0–100)

Output format

n grades, space-separated.

Example 1

Input

5
95 82 70 59 60

Output

A B C F D

Example 2

Input

1
100

Output

A

Constraints

1 ≤ n ≤ 1000

Read input from standard input and print the answer to standard output. Your code is judged against 3 test cases, most of them hidden.

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