문제

Note: The time limit for this problem is 3s, 1.5x the default. The memory limit for this problem is 512MB, twice the default.

Bessie is taking an $N$-question true or false test ($1\le N\le 2\cdot 10^5$). For the $i$-th question, she will gain $a_i$ points if she gets it correct, lose $b_i$ points if she gets it incorrect, or remain even if she does not answer it ($0<a_i,b_i\le 10^9$).

Bessie knows all the answers because she is a smart cow, but worries that Elsie (who is administering the test) will retroactively change up to $k$ of the questions after the test such that Bessie does not get those questions correct.

Given $Q$ ($1\le Q\le N+1$) candidate values of $k$ ($0\le k\le N$), determine the number of points Bessie can guarantee for each $k$, given that she must answer at least $k$ questions.

입력

The first line contains $N$ and $Q$.

The next $N$ lines each contain $a_i$ and $b_i$.

The next $Q$ lines each contain a value of $k$. No value of $k$ appears more than once.

출력

The answer for each $k$ on a separate line.

예제 입력 1

2 3
3 1
4 2
2
1
0

예제 출력 1

-3
1
7

점수

Inputs 2-4: $N\le 100$Inputs 5-7: $Q\le 10$, $N\le 2\cdot 10^5$Inputs 7-20: No additional constraints.