#[allow(unused_imports)]
use std::cmp::{max, min, Ordering, Reverse};
#[allow(unused_imports)]
use std::collections::{HashMap, HashSet, VecDeque};

mod util {
    use std::io::stdin;
    use std::str::FromStr;
    use std::fmt::Debug;

    #[allow(dead_code)]
    pub fn line() -> String {
        let mut line: String = String::new();
        stdin().read_line(&mut line).unwrap();
        line.trim().to_string()
    }

    #[allow(dead_code)]
    pub fn get<T: FromStr>() -> T
    where
        <T as FromStr>::Err: Debug,
    {
        let mut line: String = String::new();
        stdin().read_line(&mut line).unwrap();
        line.trim().parse().unwrap()
    }

    #[allow(dead_code)]
    pub fn gets<T: FromStr>() -> Vec<T>
    where
        <T as FromStr>::Err: Debug,
    {
        let mut line: String = String::new();
        stdin().read_line(&mut line).unwrap();
        line.split_whitespace()
            .map(|t| t.parse().unwrap())
            .collect()
    }

    #[allow(dead_code)]
    pub fn get2<T: FromStr, U: FromStr>() -> (T, U)
    where
        <T as FromStr>::Err: Debug,
        <U as FromStr>::Err: Debug,
    {
        let mut line: String = String::new();
        stdin().read_line(&mut line).unwrap();
        let mut iter = line.split_whitespace();
        (
            iter.next().unwrap().parse().unwrap(),
            iter.next().unwrap().parse().unwrap(),
        )
    }

    #[allow(dead_code)]
    pub fn get3<S: FromStr, T: FromStr, U: FromStr>() -> (S, T, U)
    where
        <S as FromStr>::Err: Debug,
        <T as FromStr>::Err: Debug,
        <U as FromStr>::Err: Debug,
    {
        let mut line: String = String::new();
        stdin().read_line(&mut line).unwrap();
        let mut iter = line.split_whitespace();
        (
            iter.next().unwrap().parse().unwrap(),
            iter.next().unwrap().parse().unwrap(),
            iter.next().unwrap().parse().unwrap(),
        )
    }
}


#[allow(unused_macros)]
macro_rules! debug {
    ($x: expr) => {
        println!("{}: {:?}", stringify!($x), $x)
    }
}

fn main() {
    let (n, d, k): (usize, usize, u64) = util::get3();
    let xs: Vec<u64> = (0..n).map(|_| util::get()).collect();

    let mut deq = VecDeque::new();
    let mut r = 0;

    for _ in 0..d {
        while !deq.is_empty() && xs[deq.back().cloned().unwrap()] < xs[r] {
            deq.pop_back();
        }
        deq.push_back(r);
        r += 1;
    }

    let ans = (0..n - 1)
        .filter_map(|i| {
            if r < n {
                while !deq.is_empty() && xs[deq.back().cloned().unwrap()] < xs[r] {
                    deq.pop_back();
                }
                deq.push_back(r);
                r += 1;
            }

            while deq.front().map(|&k| k <= i) == Some(true) {
                deq.pop_front();
            }

            deq.front().and_then(|&k| if xs[k] > xs[i] {
                Some((xs[k] - xs[i], Reverse((i, k))))
            } else {
                None
            })
        })
        .max();


    if let Some((profit, Reverse((buy, sell)))) = ans {
        println!("{}", profit * k);
        println!("{} {}", buy, sell);
    } else {
        println!("0");
    }
}