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

G. Anya and the Mysterious String
time limit per test
3 seconds
memory limit per test
256 megabytes
input
standard input
output
standard output

Anya received a string $$$s$$$ of length $$$n$$$ brought from Rome. The string $$$s$$$ consists of lowercase Latin letters and at first glance does not raise any suspicions. An instruction was attached to the string.

Start of the instruction.

A palindrome is a string that reads the same from left to right and right to left. For example, the strings "anna", "aboba", "level" are palindromes, while the strings "gorilla", "banan", "off" are not.

A substring $$$[l \ldots r]$$$ of string $$$s$$$ is a string $$$s_l s_{l+1} \ldots s_{r-1} s_r$$$. For example, the substring $$$[4 \ldots 6]$$$ of the string "generation" is the string "era".

A string is called beautiful if it does not contain a substring of length at least two that is a palindrome. For example, the strings "fox", "abcdef", and "yioy" are beautiful, while the strings "xyxx", "yikjkitrb" are not.

When an integer $$$x$$$ is added to the character $$$s_i$$$, it is replaced $$$x$$$ times with the next character in the alphabet, with "z" being replaced by "a".

When an integer $$$x$$$ is added to the substring $$$[l, r]$$$ of string $$$s$$$, it becomes the string $$$s_1 s_2 \ldots s_{l-1} (s_l + x) (s_{l+1} + x) \ldots (s_{r-1} + x) (s_r + x) s_{r+1} \ldots s_n$$$. For example, when the substring $$$[2, 4]$$$ of the string "abazaba" is added with the number $$$6$$$, the resulting string is "ahgfaba".

End of the instruction.

After reading the instruction, Anya resigned herself to the fact that she has to answer $$$m$$$ queries. The queries can be of two types:

  1. Add the number $$$x$$$ to the substring $$$[l \ldots r]$$$ of string $$$s$$$.
  2. Determine whether the substring $$$[l \ldots r]$$$ of string $$$s$$$ is beautiful.
Input

The first line contains an integer $$$t$$$ ($$$1 \le t \le 10^4$$$) - the number of test cases.

The descriptions of the test cases follow.

The first line of each test case contains two integers $$$n$$$ and $$$m$$$ ($$$1 \le n, m \le 2 \cdot 10^5$$$) - the length of the string $$$s$$$ and the number of queries.

The second line of each test case contains the string $$$s$$$ of length $$$n$$$, consisting of lowercase Latin letters.

The next $$$m$$$ lines contain the queries:

  • $$$1$$$ $$$l$$$ $$$r$$$ $$$x$$$ ($$$1 \le l \le r \le n$$$, $$$1 \le x \le 10^9$$$) - description of a query of the first type;
  • $$$2$$$ $$$l$$$ $$$r$$$ ($$$1 \le l \le r \le n$$$) - description of a query of the second type.

It is guaranteed that the sum of $$$n$$$ and the sum of $$$m$$$ over all test cases do not exceed $$$2 \cdot 10^5$$$.

Output

For each query of the second type, output "YES" if the substring $$$[l \ldots r]$$$ of string $$$s$$$ is beautiful, otherwise output "NO".

You can output "YES" and "NO" in any case (for example, the strings "yEs", "yes", "Yes", and "YES" will be recognized as positive answers).

Example
Input
5
12 8
tedubcyyxopz
2 2 5
1 4 8 2
2 1 7
1 3 5 40
1 9 11 3
1 10 10 9
2 4 10
2 10 12
10 4
ubnxwwgzjt
2 4 10
2 10 10
1 6 10 8
2 7 7
11 3
hntcxfxyhtu
1 4 6 1
2 4 10
1 4 10 21
13 2
yxhlmzfhqctir
1 5 9 3
1 8 13 15
2 3
bp
1 1 2 15
1 1 2 18
1 2 2 1000000000
Output
YES
NO
NO
YES
NO
YES
YES
YES
Note

In the first test case of the first test, the following happens:

  • tedubcyyxopz: the string edub is beautiful;
  • tedubcyyxopz $$$\to$$$ tedwdeaaxopz;
  • tedwdeaaxopz: the string tedwdea is not beautiful as it contains the palindrome edwde;
  • tedwdeaaxopz $$$\to$$$ terkreaaxopz;
  • terkreaaxopz $$$\to$$$ terkreaaarsz;
  • terkreaaarsz $$$\to$$$ terkreaaaasz;
  • terkreaaaasz: the string kreaaaa is not beautiful as it contains the palindrome aaaa;
  • terkreaaaasz: the string asz is beautiful.