Deliv-e-droid

Time limit1sMemory limit1024 MB

Summary

Compute the final score from the number of packages delivered and obstacle collisions, using the 50-point reward, 10-point penalty, and 500-point bonus rules.

Level: Easy1 of 10
Topics: Implementation
Solved: No attempts yet

Statement

In the game Deliv-e-droid, a robot droid must deliver packages while avoiding obstacles. When the game ends, the final score is calculated with these rules:

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

Determine the final score at the end of a game.

Input

The first line contains a non-negative integer $P$ , the number of packages delivered. The second line contains a non-negative integer $C$ , the number of collisions with obstacles.

Output

Print a single integer $F$ , the final score.

Examples2

Example 1
Input
```
5
2
```
Expected output
```
730
```
Example 2
Input
```
0
10
```
Expected output
```
-100
```