Please subscribe to the official Codeforces channel in Telegram via the link https://t.me/codeforces_official.
×

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.

×
A. Sereja and Algorithm

time limit per test

1 secondmemory limit per test

256 megabytesinput

standard inputoutput

standard outputSereja loves all sorts of algorithms. He has recently come up with a new algorithm, which receives a string as an input. Let's represent the input string of the algorithm as *q* = *q*_{1}*q*_{2}... *q*_{k}. The algorithm consists of two steps:

- Find any continuous subsequence (substring) of three characters of string
*q*, which doesn't equal to either string "zyx", "xzy", "yxz". If*q*doesn't contain any such subsequence, terminate the algorithm, otherwise go to step 2. - Rearrange the letters of the found subsequence randomly and go to step 1.

Sereja thinks that the algorithm works correctly on string *q* if there is a non-zero probability that the algorithm will be terminated. But if the algorithm anyway will work for infinitely long on a string, then we consider the algorithm to work incorrectly on this string.

Sereja wants to test his algorithm. For that, he has string *s* = *s*_{1}*s*_{2}... *s*_{n}, consisting of *n* characters. The boy conducts a series of *m* tests. As the *i*-th test, he sends substring *s*_{li}*s*_{li + 1}... *s*_{ri} (1 ≤ *l*_{i} ≤ *r*_{i} ≤ *n*) to the algorithm input. Unfortunately, the implementation of his algorithm works too long, so Sereja asked you to help. For each test (*l*_{i}, *r*_{i}) determine if the algorithm works correctly on this test or not.

Input

The first line contains non-empty string *s*, its length (*n*) doesn't exceed 10^{5}. It is guaranteed that string *s* only contains characters: 'x', 'y', 'z'.

The second line contains integer *m* (1 ≤ *m* ≤ 10^{5}) — the number of tests. Next *m* lines contain the tests. The *i*-th line contains a pair of integers *l*_{i}, *r*_{i} (1 ≤ *l*_{i} ≤ *r*_{i} ≤ *n*).

Output

For each test, print "YES" (without the quotes) if the algorithm works correctly on the corresponding test and "NO" (without the quotes) otherwise.

Examples

Input

zyxxxxxxyyz

5

5 5

1 3

1 11

1 4

3 6

Output

YES

YES

NO

YES

NO

Note

In the first example, in test one and two the algorithm will always be terminated in one step. In the fourth test you can get string "xzyx" on which the algorithm will terminate. In all other tests the algorithm doesn't work correctly.

Codeforces (c) Copyright 2010-2021 Mike Mirzayanov

The only programming contests Web 2.0 platform

Server time: Sep/23/2021 12:58:16 (j2).

Desktop version, switch to mobile version.

Supported by

User lists

Name |
---|