Rating changes for last rounds are temporarily rolled back. They will be returned soon.
×

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.

×
B. Last Year's Substring

time limit per test

2 secondsmemory limit per test

256 megabytesinput

standard inputoutput

standard outputPolycarp has a string $$$s[1 \dots n]$$$ of length $$$n$$$ consisting of decimal digits. Polycarp performs the following operation with the string $$$s$$$ no more than once (i.e. he can perform operation $$$0$$$ or $$$1$$$ time):

- Polycarp selects two numbers $$$i$$$ and $$$j$$$ ($$$1 \leq i \leq j \leq n$$$) and removes characters from the $$$s$$$ string at the positions $$$i, i+1, i+2, \ldots, j$$$ (i.e. removes substring $$$s[i \dots j]$$$). More formally, Polycarp turns the string $$$s$$$ into the string $$$s_1 s_2 \ldots s_{i-1} s_{j+1} s_{j+2} \ldots s_{n}$$$.

For example, the string $$$s = $$$"20192020" Polycarp can turn into strings:

- "2020" (in this case $$$(i, j)=(3, 6)$$$ or $$$(i, j)=(1, 4)$$$);
- "2019220" (in this case $$$(i, j)=(6, 6)$$$);
- "020" (in this case $$$(i, j)=(1, 5)$$$);
- other operations are also possible, only a few of them are listed above.

Polycarp likes the string "2020" very much, so he is wondering if it is possible to turn the string $$$s$$$ into a string "2020" in no more than one operation? Note that you can perform zero operations.

Input

The first line contains a positive integer $$$t$$$ ($$$1 \leq t \leq 1000 $$$) — number of test cases in the test. Then $$$t$$$ test cases follow.

The first line of each test case contains an integer $$$n$$$ ($$$4 \leq n \leq 200$$$) — length of the string $$$s$$$. The next line contains a string $$$s$$$ of length $$$n$$$ consisting of decimal digits. It is allowed that the string $$$s$$$ starts with digit 0.

Output

For each test case, output on a separate line:

- "YES" if Polycarp can turn the string $$$s$$$ into a string "2020" in no more than one operation (i.e. he can perform $$$0$$$ or $$$1$$$ operation);
- "NO" otherwise.

You may print every letter of "YES" and "NO" in any case you want (so, for example, the strings yEs, yes, Yes and YES will all be recognized as positive answer).

Example

Input

6 8 20192020 8 22019020 4 2020 5 20002 6 729040 6 200200

Output

YES YES YES NO NO NO

Note

In the first test case, Polycarp could choose $$$i=3$$$ and $$$j=6$$$.

In the second test case, Polycarp could choose $$$i=2$$$ and $$$j=5$$$.

In the third test case, Polycarp did not perform any operations with the string.

Codeforces (c) Copyright 2010-2022 Mike Mirzayanov

The only programming contests Web 2.0 platform

Server time: Sep/25/2022 14:25:01 (k3).

Desktop version, switch to mobile version.

Supported by

User lists

Name |
---|