#![allow(non_snake_case)]
#![allow(dead_code)]
#![allow(unused_macros)]
#![allow(unused_imports)]

use std::str::FromStr;
use std::io::*;
use std::collections::*;
use std::cmp::*;

struct Scanner<I: Iterator<Item = char>> {
    iter: std::iter::Peekable<I>,
}

macro_rules! exit {
    () => {{
        exit!(0)
    }};
    ($code:expr) => {{
        if cfg!(local) {
            writeln!(std::io::stderr(), "===== Terminated =====")
                .expect("failed printing to stderr");
        }
        std::process::exit($code);
    }}
}

impl<I: Iterator<Item = char>> Scanner<I> {
    pub fn new(iter: I) -> Scanner<I> {
        Scanner {
            iter: iter.peekable(),
        }
    }

    pub fn safe_get_token(&mut self) -> Option<String> {
        let token = self.iter
            .by_ref()
            .skip_while(|c| c.is_whitespace())
            .take_while(|c| !c.is_whitespace())
            .collect::<String>();
        if token.is_empty() {
            None
        } else {
            Some(token)
        }
    }

    pub fn token(&mut self) -> String {
        self.safe_get_token().unwrap_or_else(|| exit!())
    }

    pub fn get<T: FromStr>(&mut self) -> T {
        self.token().parse::<T>().unwrap_or_else(|_| exit!())
    }

    pub fn vec<T: FromStr>(&mut self, len: usize) -> Vec<T> {
        (0..len).map(|_| self.get()).collect()
    }

    pub fn mat<T: FromStr>(&mut self, row: usize, col: usize) -> Vec<Vec<T>> {
        (0..row).map(|_| self.vec(col)).collect()
    }

    pub fn char(&mut self) -> char {
        self.iter.next().unwrap_or_else(|| exit!())
    }

    pub fn chars(&mut self) -> Vec<char> {
        self.get::<String>().chars().collect()
    }

    pub fn mat_chars(&mut self, row: usize) -> Vec<Vec<char>> {
        (0..row).map(|_| self.chars()).collect()
    }

    pub fn line(&mut self) -> String {
        if self.peek().is_some() {
            self.iter
                .by_ref()
                .take_while(|&c| !(c == '\n' || c == '\r'))
                .collect::<String>()
        } else {
            exit!();
        }
    }

    pub fn peek(&mut self) -> Option<&char> {
        self.iter.peek()
    }
}

fn main() {
    let cin = stdin();
    let cin = cin.lock();
    let mut sc = Scanner::new(cin.bytes().map(|c| c.unwrap() as char));
    let N: usize = sc.get();
    let mut comb = vec![vec![0usize; N+1]; N+1];
    comb[0][0] = 1;
    for i in 1..N+1 {
        for j in 0..i+1 {
            if j == 0 || i == j {
                comb[i][j] = 1;
            } else {
                comb[i][j] = comb[i-1][j-1] + comb[i-1][j];
            }
        }
    }
    let A: usize = sc.get();
    let B: usize = sc.get();
    let mut v: Vec<usize> = sc.vec(N);
    v.sort();
    v.reverse();
    let ans = v.iter().take(A).sum::<usize>() as f64 / A as f64;
    println!("{}", ans);
    let mut all_same = true;
    let &first = v.first().unwrap();
    for &i in v.iter().take(A) {
        if i != first {
            all_same = false;
        }
    }
    if all_same {
        let mut n = A;
        for &i in v.iter().skip(A) {
            if i == first {
                n += 1;
            }
        }
        let mut ans = 0;
        for i in A..B+1 {
            ans += comb[n][i];
        }
        println!("{}", ans);
    } else {
        let &x = v.iter().nth(A-1).unwrap();
        let mut n = 0usize;
        for &i in v.iter() {
            if x == i {
                n += 1;
            }
        }
        let mut k = 0usize;
        for &i in v.iter().take(A) {
            if x == i {
                k += 1;
            }
        }
        println!("{}", comb[n][k]);
    }
}


Measured memory_bytes: 4352