use proconio::input;
fn main(){
    input!{
        s:String,
        i:usize,j:usize,
    }
    let mut c:Vec<char>=s.chars().collect();
    let n=c[i];
    c[i]=c[j];c[j]=n;
    for p in c{
    	print!("{}",p);
    }
}