Problem:
Score : 600 points

Problem Statement

In Dwango Co., Ltd., there is a content distribution system named 'Dwango Media Cluster', and it is called 'DMC' for short.

The name 'DMC' sounds cool for Niwango-kun, so he starts to define DMC-ness of a string.

Given a string S of length N and an integer k (k \geq 3),
he defines the k-DMC number of S as the number of triples (a, b, c) of integers that satisfy the following conditions:

0 \leq a < b < c \leq N - 1

S[a] = D

S[b] = M

S[c] = C

c-a < k

Here S[a] is the a-th character of the string S. Indexing is zero-based, that is, 0 \leq a \leq N - 1 holds.

For a string S and Q integers k_0, k_1, ..., k_{Q-1}, calculate the k_i-DMC number of S for each i (0 \leq i \leq Q-1).

Constraints

3 \leq N \leq 10^6

S consists of uppercase English letters

1 \leq Q \leq 75

3 \leq k_i \leq N

All numbers given in input are integers

Input

Input is given from Standard Input in the following format:

N
S
Q
k_{0} k_{1} ... k_{Q-1}

Output

Print Q lines.
The i-th line should contain the k_i-DMC number of the string S.

Sample Input 1

18
DWANGOMEDIACLUSTER
1
18

Sample Output 1

1

(a,b,c) = (0, 6, 11) satisfies the conditions.

Strangely, Dwango Media Cluster does not have so much DMC-ness by his definition.

Sample Input 2

18
DDDDDDMMMMMCCCCCCC
1
18

Sample Output 2

210

The number of triples can be calculated as 6\times 5\times 7.

Sample Input 3

54
DIALUPWIDEAREANETWORKGAMINGOPERATIONCORPORATIONLIMITED
3
20 30 40

Sample Output 3

0
1
2

(a, b, c) = (0, 23, 36), (8, 23, 36) satisfy the conditions except the last one, namely, c-a < k_i.

By the way, DWANGO is an acronym for "Dial-up Wide Area Network Gaming Operation".

Sample Output 4

30
DMCDMCDMCDMCDMCDMCDMCDMCDMCDMC
4
5 10 15 20

Sample Output 4

10
52
110
140

Solution in Rust (1.15.1) (judge verdict: Accepted)

use std::fs;
use std::io::{stdin, Read};

macro_rules! parse {
    ($it: ident) => {
        $it.next().unwrap().parse().unwrap()
    };
    ($it: ident,2) => {
        (parse!($it), parse!($it))
    };
    ($it: ident,3) => {
        (parse!($it), parse!($it), parse!($it))
    };
    ($it: ident,4) => {
        (parse!($it), parse!($it), parse!($it), parse!($it))
    };
    ($it: ident, $n: expr) => {
        (&mut $it).take($n).map(|e| e.parse().unwrap()).collect();
    };
}

fn solve(s: &str) {
    let mut it = s.split_whitespace();
    let n: usize = parse!(it);
    let s = it.next().unwrap();
    let indices = |target| {
        s.chars()
            .enumerate()
            .filter(|&(i, c)| c == target)
            .map(|(i, c)| i)
            .collect::<Vec<usize>>()
    };
    let a = indices('D');
    let b = indices('M');
    let c = indices('C');
    let c2b = c
        .iter()
        .map(|x| b.binary_search(x).unwrap_err())
        .scan(0, |s, x| {
            *s += x;
            Some(*s)
        })
        .collect::<Vec<_>>();
    let q = parse!(it);
    let aicl = a
        .iter()
        .map(|ai| c.binary_search(ai).unwrap_err())
        .collect::<Vec<_>>();
    let cr = (0..(n + 1))
        .map(|x| c.binary_search(&x).unwrap_or_else(|x| x))
        .collect::<Vec<_>>();
    let aibj = a
        .iter()
        .map(|ai| b.binary_search(ai).unwrap_err())
        .collect::<Vec<_>>();
    for _ in 0..q {
        let k: usize = parse!(it);
        let mut ret = 0;
        for (i, ai) in a.iter().enumerate() {
            let l = aicl[i];
            let r = if ai + k > n { c.len() } else { cr[ai + k] };
            let j = aibj[i];
            if l >= c.len() || r == 0 || j >= b.len() {
                continue;
            }
            ret += c2b[r - 1] - (r - l) * j - if l > 0 { c2b[l - 1] } else { 0 };
        }
        println!("{}", ret);
    }
}

fn test() {
    let mut f = fs::File::open("foo.txt").unwrap();
    let mut s = String::new();
    f.read_to_string(&mut s).unwrap();
    solve(&s);
}

fn main() {
    let mut s = String::new();
    stdin().read_to_string(&mut s).unwrap();
    solve(&s);
}

#[cfg(test)]
mod tests {
    use super::*;
    #[test]
    fn test_input() {
        let s = "
        18
DWANGOMEDIACLUSTER
1
18
        ";
    }
}