fn main() {
    input! {
        t: usize,
        ask: [(usize, String); t],
    }
    for (_, s) in ask {
        if let Some(s) = solve(s, "helloworld".to_string()) {
            println!("{}", s);
        } else {
            println!("-1");
        }
    }
}

fn solve(s: String, pat: String) -> Option<String> {
    let t = s.replace("?", "a");
    if t.find(&pat).is_some() {
        return Some(t);
    }
    let pat = pat.chars().collect::<Vec<_>>();
    let s = s.chars().collect::<Vec<_>>();
    let pos = s
        .windows(pat.len())
        .enumerate()
        .filter(|p| p.1.iter().zip(&pat).all(|p| *p.0 == *p.1 || *p.0 == '?'))
        .map(|p| p.0)
        .collect::<Vec<_>>();
    pos.into_iter()
        .rev()
        .take(pat.len())
        .map(|x| {
            let mut t = t.chars().collect::<Vec<_>>();
            for (t, p) in t[x..].iter_mut().zip(pat.iter()) {
                *t = *p;
            }
            t.into_iter().collect()
        })
        .min()
}

// ---------- begin input macro ----------
// reference: https://qiita.com/tanakh/items/0ba42c7ca36cd29d0ac8
#[macro_export]
macro_rules! input {
    (source = $s:expr, $($r:tt)*) => {
        let mut iter = $s.split_whitespace();
        input_inner!{iter, $($r)*}
    };
    ($($r:tt)*) => {
        let s = {
            use std::io::Read;
            let mut s = String::new();
            std::io::stdin().read_to_string(&mut s).unwrap();
            s
        };
        let mut iter = s.split_whitespace();
        input_inner!{iter, $($r)*}
    };
}

#[macro_export]
macro_rules! input_inner {
    ($iter:expr) => {};
    ($iter:expr, ) => {};
    ($iter:expr, $var:ident : $t:tt $($r:tt)*) => {
        let $var = read_value!($iter, $t);
        input_inner!{$iter $($r)*}
    };
}

#[macro_export]
macro_rules! read_value {
    ($iter:expr, ( $($t:tt),* )) => {
        ( $(read_value!($iter, $t)),* )
    };
    ($iter:expr, [ $t:tt ; $len:expr ]) => {
        (0..$len).map(|_| read_value!($iter, $t)).collect::<Vec<_>>()
    };
    ($iter:expr, chars) => {
        read_value!($iter, String).chars().collect::<Vec<char>>()
    };
    ($iter:expr, bytes) => {
        read_value!($iter, String).bytes().collect::<Vec<u8>>()
    };
    ($iter:expr, usize1) => {
        read_value!($iter, usize) - 1
    };
    ($iter:expr, $t:ty) => {
        $iter.next().unwrap().parse::<$t>().expect("Parse error")
    };
}
// ---------- end input macro ----------