Codeforces Round 188 (Div. 1)
B
Ants
Codeforces
2000
原题
← AC →
翻译中…

It has been noted that if some ants are put in the junctions of the graphene integer lattice then they will act in the following fashion: every minute at each junction ($*x*$, $*y*$) containing at least four ants a group of four ants will be formed, and these four ants will scatter to the neighbouring junctions ($*x* + 1$, $*y*$), ($*x* - 1$, $*y*$), ($*x*$, $*y* + 1$), ($*x*$, $*y* - 1$) — one ant in each direction. No other ant movements will happen. Ants never interfere with each other.

翻译中…

Scientists have put a colony of $*n*$ ants into the junction (0, 0) and now they wish to know how many ants will there be at some given junctions, when the movement of the ants stops.

翻译中…

Input

翻译中…

First input line contains integers $*n*$ ($0 ≤ *n* ≤ 30000$) and $*t*$ ($1 ≤ *t* ≤ 50000$), where $*n*$ is the number of ants in the colony and $*t*$ is the number of queries. Each of the next $*t*$ lines contains coordinates of a query junction: integers $*x*_{*i*}$, $*y*_{*i*}$ ($- 10^{9} ≤ *x*_{*i*}, *y*_{*i*} ≤ 10^{9}$). Queries may coincide.

翻译中…

It is guaranteed that there will be a certain moment of time when no possible movements can happen (in other words, the process will eventually end).

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Output

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Print $*t*$ integers, one per line — the number of ants at the corresponding junctions when the movement of the ants stops.

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Note

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In the first sample the colony consists of the one ant, so nothing happens at all.

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In the second sample the colony consists of 6 ants. At the first minute 4 ants scatter from (0, 0) to the neighbouring junctions. After that the process stops.

翻译中…

样例

Input #1
1 3
0 1
0 0
0 -1
Output #1
0
1
0
InputCopy OutputCopy
Input #2
6 5
0 -2
0 -1
0 0
0 1
0 2
Output #2
0
1
2
1
0
InputCopy OutputCopy
题目信息
题号
317B
时间限制
1 s
内存限制
256 MB
标签
暴力
模拟

题面与样例版权归 Codeforces 及出题人所有;中文翻译由 AI 生成(CI 管线),如有出入请以原文为准。