Virtual contest is a way to take part in past contest, as close as possible to participation on time. It is supported only ICPC mode for virtual contests.
If you've seen these problems, a virtual contest is not for you - solve these problems in the archive.
If you just want to solve some problem from a contest, a virtual contest is not for you - solve this problem in the archive.
Never use someone else's code, read the tutorials or communicate with other person during a virtual contest.

No tag edit access

The problem statement has recently been changed. View the changes.

×
C1. Nauuo and Pictures (easy version)

time limit per test

4 secondsmemory limit per test

256 megabytesinput

standard inputoutput

standard outputThe only difference between easy and hard versions is constraints.

Nauuo is a girl who loves random picture websites.

One day she made a random picture website by herself which includes $$$n$$$ pictures.

When Nauuo visits the website, she sees exactly one picture. The website does not display each picture with equal probability. The $$$i$$$-th picture has a non-negative weight $$$w_i$$$, and the probability of the $$$i$$$-th picture being displayed is $$$\frac{w_i}{\sum_{j=1}^nw_j}$$$. That is to say, the probability of a picture to be displayed is proportional to its weight.

However, Nauuo discovered that some pictures she does not like were displayed too often.

To solve this problem, she came up with a great idea: when she saw a picture she likes, she would add $$$1$$$ to its weight; otherwise, she would subtract $$$1$$$ from its weight.

Nauuo will visit the website $$$m$$$ times. She wants to know the expected weight of each picture after all the $$$m$$$ visits modulo $$$998244353$$$. Can you help her?

The expected weight of the $$$i$$$-th picture can be denoted by $$$\frac {q_i} {p_i}$$$ where $$$\gcd(p_i,q_i)=1$$$, you need to print an integer $$$r_i$$$ satisfying $$$0\le r_i<998244353$$$ and $$$r_i\cdot p_i\equiv q_i\pmod{998244353}$$$. It can be proved that such $$$r_i$$$ exists and is unique.

Input

The first line contains two integers $$$n$$$ and $$$m$$$ ($$$1\le n\le 50$$$, $$$1\le m\le 50$$$) — the number of pictures and the number of visits to the website.

The second line contains $$$n$$$ integers $$$a_1,a_2,\ldots,a_n$$$ ($$$a_i$$$ is either $$$0$$$ or $$$1$$$) — if $$$a_i=0$$$ , Nauuo does not like the $$$i$$$-th picture; otherwise Nauuo likes the $$$i$$$-th picture. It is guaranteed that there is at least one picture which Nauuo likes.

The third line contains $$$n$$$ integers $$$w_1,w_2,\ldots,w_n$$$ ($$$1\le w_i\le50$$$) — the initial weights of the pictures.

Output

The output contains $$$n$$$ integers $$$r_1,r_2,\ldots,r_n$$$ — the expected weights modulo $$$998244353$$$.

Examples

Input

2 1 0 1 2 1

Output

332748119 332748119

Input

1 2 1 1

Output

3

Input

3 3 0 1 1 4 3 5

Output

160955686 185138929 974061117

Note

In the first example, if the only visit shows the first picture with a probability of $$$\frac 2 3$$$, the final weights are $$$(1,1)$$$; if the only visit shows the second picture with a probability of $$$\frac1 3$$$, the final weights are $$$(2,2)$$$.

So, both expected weights are $$$\frac2 3\cdot 1+\frac 1 3\cdot 2=\frac4 3$$$ .

Because $$$332748119\cdot 3\equiv 4\pmod{998244353}$$$, you need to print $$$332748119$$$ instead of $$$\frac4 3$$$ or $$$1.3333333333$$$.

In the second example, there is only one picture which Nauuo likes, so every time Nauuo visits the website, $$$w_1$$$ will be increased by $$$1$$$.

So, the expected weight is $$$1+2=3$$$.

Nauuo is very naughty so she didn't give you any hint of the third example.

Codeforces (c) Copyright 2010-2021 Mike Mirzayanov

The only programming contests Web 2.0 platform

Server time: Jul/26/2021 05:37:14 (h2).

Desktop version, switch to mobile version.

Supported by

User lists

Name |
---|