+ محدودیت زمان: ۱ ثانیه + محدودیت حافظه: ۲۵۶ مگابایت ---------- Chaarshanbegaan is a gathering event at Cafebazaar similar to TGIF events at Google. Some entertainment programs like pantomime, foosball, Xbox/PS4, and several board games are part of the event. You are going to set up a dart game in Chaarshanbegaan. As a techie organizing a game for techies, you would rather use a smart screen and write a program to calculate the scores instead of hanging a traditional dartboard and scoring the shots manually. Your program must get the coordinates of dart shots for a player and calculate his/her total score. The score for each dart shot (at point $(x, y)$) is calculated based on its distance from the center of the dartboard (point $(0, 0)$). If the distance is d millimeters, the score is calculated based on the following table:  # ورودی The first line of the input contains a single integer $N$ as the number of dart shots for a player ($1 \leq N \leq 100$). Each of the next $N$ lines contains two space-separated integers as the coordinates $(x, y)$ of a dart shot. The coordinates are in millimeters and their absolute values will not be greater than $300$. # خروجی Print a single line containing the total score of the player. # مثال ## ورودی نمونه ۱ ``` 2 4 7 -31 -5 ``` ## خروجی نمونه ۱ ``` 18 ``` ## ورودی نمونه ۲ ``` 3 12 -16 -180 100 152 10 ``` ## خروجی نمونه ۲ ``` 11 ```