Canadian Computing Competition: 2023 Stage 1, Junior #1

In the game, Deliv-e-droid, a robot droid has to deliver packages while avoiding obstacles. At the end of the game, the final score is calculated based on the following point system:

• Gain ~50~ points for every package delivered.
• Lose ~10~ points for every collision with an obstacle.
• Earn a bonus ~500~ points if the number of packages delivered is greater than the number of collisions with obstacles.

Your job is to determine the final score at the end of a game.

Input Specification

The input will consist of two lines. The first line will contain a non-negative integer ~P~, representing the number of packages delivered. The second line will contain a non-negative integer ~C~, representing the number of collisions with obstacles.

Output Specification

The output will consist of a single integer ~F~, representing the final score.

Sample Input 1

5
2

Sample Output 1

730

Explanation for Sample 1

There are ~5~ packages delivered, so ~5 \times 50 = 250~ points are gained. There are ~2~ collisions, so ~2 \times 10 = 20~ points are lost. Since ~5 > 2~, a bonus ~500~ points are earned. Therefore, the final score is ~250 - 20 + 500 = 730~.

Sample Input 2

0
10

Sample Output 2

-100

Explanation for Sample 2

There are ~0~ packages delivered, so ~0 \times 50 = 0~ points are gained. There are ~10~ collisions, so ~10 \times 10 = 100~ points are lost. Since ~0 \le 10~, no bonus points are earned. Therefore, the final score is ~0 - 100 + 0 = -100~.