use std::io::*;

fn main() {
    let mut s: String = String::new();
    std::io::stdin().read_to_string(&mut s).ok();
    let mut itr = s.trim().split_whitespace();
    let s: Vec<char> = itr.next().unwrap().chars().collect();
    let mut t: Vec<char> = itr.next().unwrap().chars().collect();
    for i in 0..t.len() {
        if '0' <= t[i] && t[i] <= '9' {
            let idx = t[i] as u8 - '0' as u8;
            t[i] = s[idx as usize];
        }
    }
    let ans: String = t.into_iter().collect();
    println!("{}", ans);
}