fn run() {
    let cnt = [1, 0, 0, 0, 1, 0, 1, 0, 2, 1];
    let count = |n: usize| -> usize {
        let mut up = 0;
        let mut dp = (0, 0);
        for (i, d) in n.to_string().bytes().enumerate() {
            let d = (d - b'0') as usize;
            let mut next = (0, 0);
            for &c in cnt.iter() {
                next.0 += dp.0;
                next.1 += dp.1 + dp.0 * c;
            }
            let s = (i == 0) as usize;
            if s < d {
                for &c in cnt[s..d].iter() {
                    next.0 += 1;
                    next.1 += up + c;
                }
            }
            if i > 0 {
                for &c in cnt[1..].iter() {
                    next.0 += 1;
                    next.1 += c;
                }
            }
            up += cnt[d];
            dp = next;
        }
        dp.1 + up
    };
    input!(k: usize);
    let mut ng = 0;
    let mut ok = 1;
    while count(ok) < k {
        ng = ok;
        ok = 2 * ok;
    }
    while ok - ng > 1 {
        let mid = (ok + ng) / 2;
        if count(mid) < k {
            ng = mid;
        } else {
            ok = mid;
        }
    }
    if count(ok) != k {
        println!("-1");
    } else {
        println!("{}", ok);
    }
}

fn main() {
    run();
}

// ---------- begin input macro ----------
// reference: https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8
#[macro_export]
macro_rules! input {
    (source = $s:expr, $($r:tt)*) => {
        let mut iter = $s.split_whitespace();
        input_inner!{iter, $($r)*}
    };
    ($($r:tt)*) => {
        let s = {
            use std::io::Read;
            let mut s = String::new();
            std::io::stdin().read_to_string(&mut s).unwrap();
            s
        };
        let mut iter = s.split_whitespace();
        input_inner!{iter, $($r)*}
    };
}

#[macro_export]
macro_rules! input_inner {
    ($iter:expr) => {};
    ($iter:expr, ) => {};
    ($iter:expr, $var:ident : $t:tt $($r:tt)*) => {
        let $var = read_value!($iter, $t);
        input_inner!{$iter $($r)*}
    };
}

#[macro_export]
macro_rules! read_value {
    ($iter:expr, ( $($t:tt),* )) => {
        ( $(read_value!($iter, $t)),* )
    };
    ($iter:expr, [ $t:tt ; $len:expr ]) => {
        (0..$len).map(|_| read_value!($iter, $t)).collect::<Vec<_>>()
    };
    ($iter:expr, chars) => {
        read_value!($iter, String).chars().collect::<Vec<char>>()
    };
    ($iter:expr, bytes) => {
        read_value!($iter, String).bytes().collect::<Vec<u8>>()
    };
    ($iter:expr, usize1) => {
        read_value!($iter, usize) - 1
    };
    ($iter:expr, $t:ty) => {
        $iter.next().unwrap().parse::<$t>().expect("Parse error")
    };
}
// ---------- end input macro ----------