fn run() {
    let mut s = String::new();
    std::io::stdin().read_line(&mut s).unwrap();
    let n: usize = s.trim().parse().unwrap();
    let mut dp = vec![(0, 0); n + 1];
    for i in 1..=n {
        let mut s = dp[i - 1];
        s.0 += 1;
        s.1 += 1;
        let mut j = 2;
        while j * j <= i {
            let v = dp[i - j * j];
            if s.0 > v.0 + j {
                s = v;
                s.0 += j;
            } else if s.0 == v.0 + j && s.1 < v.1 {
                s = v;
                s.0 += j;
            }
            j += 1;
        }
        dp[i] = s;
    }
    let mut a = vec![];
    let mut m = n;
    while m > 0 {
        if dp[m].1 > 0 {
            a.push(1);
            m -= 1;
            continue;
        }
        let mut find = false;
        let mut j = 3;
        while j * j <= m && !find{
            if dp[m - j * j].0 + j == dp[m].0 {
                find = true;
                m -= j * j;
                a.push(j);
            }
            j += 2;
        }
        let mut j = 2;
        while j * j <= m && !find {
            if dp[m - j * j].0 + j == dp[m].0 {
                find = true;
                m -= j * j;
                a.push(j);
            }
            j += 2;
        }
    }
    a.sort_by(|a, b| {
        if a % 2 == b % 2 {
            if a % 2 == 1 {
                a.cmp(&b)
            } else {
                b.cmp(&a)
            }
        } else if a % 2 == 1 {
            std::cmp::Ordering::Less
        } else {
            std::cmp::Ordering::Greater
        }
    });
    let mut ans = String::new();
    let mut prev = '0';
    for mut a in a {
        ans.push(prev);
        a -= 1;
        while a > 1 {
            ans.push(if prev == '1' {'0'} else {'1'});
            ans.push(prev);
            a -= 2;
        }
        if a > 0 {
            ans.push(if prev == '1' {'0'} else {'1'});
            prev = if prev == '1' {'0'} else {'1'};
        }
    }
    println!("{}", ans);
}

fn main() {
    run();
}