use std::collections::HashMap;

fn main() {
    let mut xx = String::new();
    std::io::Read::read_to_string(&mut std::io::stdin(), &mut xx).ok();
    let xx: Vec<Vec<char>> = xx.split_whitespace().map(|s| s.chars().collect()).collect();

    let map: HashMap<char, char> = ('0'..='9')
        .enumerate()
        .map(|(i, c)| (c, xx[0][i]))
        .collect();

    let answer: String = xx[1]
        .iter()
        .map(|&c| if ('0'..='9').contains(&c) { map[&c] } else { c })
        .collect();

    println!("{answer}");
}