fn main() {
    
    let mut s = String::new();
    std::io::stdin().read_line(&mut s).ok();
    let s: &str = s.trim().split('\n').next().unwrap().trim();
    
    let mut ij = String::new();
    std::io::stdin().read_line(&mut ij).ok();
    let ij: Vec<usize> = ij.trim().split_whitespace().map(|s| s.parse().unwrap()).collect();
    let i = ij[0];
    let j = ij[1];

    let mut t: Vec<char> = s.chars().collect();
    t.swap(i, j);
    for c in t {
        print!("{}", c);
    }
    println!("");
}