use std::io::{Read, stdin};
use std::cmp::{max, min};

struct XorShift { x: u32, y: u32, z: u32, w: u32 }
impl XorShift {
    fn new(seed: u32) -> XorShift { 
        XorShift{ x: seed, y: 1, z: 2, w: 3 }
    }
    fn generate(&mut self) -> u32 {
        let t = self.x ^ (self.x << 11);
        self.x = self.y;
        self.y = self.z;
        self.z = self.w;
        self.w = (self.w ^ (self.w >> 19)) ^ (t ^ (t >> 8));
        self.w
    }
}

fn main() {
    let mut buf = String::new();
    stdin().read_to_string(&mut buf).unwrap();
    let mut tok = buf.split_whitespace();
    let mut get = || tok.next().unwrap();
    macro_rules! get {
        ($t:ty) => (get().parse::<$t>().unwrap());
        () => (get!(i64));
    }
    
    let n = 10_000_001;
    let seed = get!(u32);
    let mut rand = XorShift::new(seed);
    
    let mut max_value = 0;
    let mut min_value = std::u32::MAX;
    
    for _ in 0..n {
        let x = rand.generate();
        max_value = max(max_value, x);
        min_value = min(min_value, x);
    }
    let div_line = (n + 1) / 2;
    let mid_value = (max_value - min_value) / 2 + min_value;
    let mut less_count = 0;
    let mut more_count = 0;
    rand = XorShift::new(seed);
    for _ in 0..n {
        let x = rand.generate();
        if min_value <= x && x < mid_value {
            less_count += 1;
        } else if mid_value <= x && x <= max_value {
            more_count += 1;
        }
    }
    let mut arr = vec![];
    if div_line <= less_count {
        rand = XorShift::new(seed);
        for _ in 0..n {
            let x = rand.generate();
            if min_value <= x && x < mid_value {
                arr.push(x);
            }
        }
        arr.sort();
        println!("{}", arr[div_line as usize]);
    } else if div_line <= more_count {
        rand = XorShift::new(seed);
        for _ in 0..n {
            let x = rand.generate();
            if mid_value <= x && x <= max_value {
                arr.push(x);
            }
        }
        arr.sort();
        arr.reverse();
        println!("{}", arr[div_line as usize]);
    }
}