#![allow(unused_imports)]
#![allow(non_snake_case)]
use std::collections::HashMap;
use std::collections::HashSet;
use std::collections::VecDeque;

#[allow(unused_macros)]
macro_rules! read {
    ([$t:ty] ; $n:expr) =>
        ((0..$n).map(|_| read!([$t])).collect::<Vec<_>>());
    ($($t:ty),+ ; $n:expr) =>
        ((0..$n).map(|_| read!($($t),+)).collect::<Vec<_>>());
    ([$t:ty]) =>
        (rl().split_whitespace().map(|w| w.parse().unwrap()).collect::<Vec<$t>>());
    ($t:ty) =>
        (rl().parse::<$t>().unwrap());
    ($($t:ty),*) => {{
        let buf = rl();
        let mut w = buf.split_whitespace();
        ($(w.next().unwrap().parse::<$t>().unwrap()),*)
    }};
}

#[allow(dead_code)]
fn rl() -> String {
    let mut buf = String::new();
    std::io::stdin().read_line(&mut buf).unwrap();
    buf.trim_end().to_owned()
}

fn main() {
    let n: u8 = {
        let tmp = read!(String);
        let tmp = tmp.into_bytes();
        let tmp = tmp[tmp.len() - 1];
        tmp - '0' as u8
    };

    let m = read!(String).into_bytes();
    if m.len() == 1 && m[0] == '0' as u8 {
        println!("1");
        return;
    }

    match n {
        0 | 1 | 5 | 6 => {
            println!("{}", n);
        }
        2 | 3 | 7 | 8 => {
            let d = 4;
            let m = if m.len() == 1 {
                m[m.len() - 1] - '0' as u8
            } else {
                (m[m.len() - 2] - '0' as u8) * 10 + (m[m.len() - 1] - '0' as u8) + d
            };
            let mut k = m % d;
            if k == 0 {
                k = d;
            }
            println!("{}", (n as u32).pow(k as u32) % 10);
        }
        4 | 9 => {
            let d = 2;
            let m = m[m.len() - 1] - '0' as u8 + d;
            let mut k = m % d;
            if k == 0 {
                k = d;
            }
            println!("{}", (n as u32).pow(k as u32) % 10);
        }
        _ => {
            unreachable!();
        }
    }
}