let znaki = s.chars().collect::<Vec<char>>();
    let n = s.len();

    let mut f = Vec::new();
    let mut s = Vec::new();
    for i in 0..n {
        if i + 1 == n {break;}
        f.push(((znaki[i] as i32) - znaki[i+1] as i32).abs());
        s.push(((znaki[n-i-1] as i32) -znaki[n-i-2] as i32).abs());
    }
    if f == s {
        return "Funny".to_string();
    }
    "Not Funny".to_string()
}