In this problem, you will create a program that evaluates an input score (0–100) using conditional branching and displays the corresponding grade (A–F) to standard output.

Problem Overview

Create a program that inputs a test score and displays the grade evaluation.

Input Format

Receive 1 line of input:

• Score (integer from 0 to 100)

Output Format

Display grade based on the following criteria:

• 90 and above: A
• 80 to 89: B
• 70 to 79: C
• 60 to 69: D
• Below 60: F

Output format: Score: [score] -> Grade: [grade]

Notes

• Display "Invalid score" for scores below 0 or above 100.