use proconio::input;

fn main(){
    input!{
        a: [i32; 7],
    }

    let mut time = 6000;
    let mut fin = false;
    for x in a{
        time -= x;
        if x == -1 || time < 0{
            fin = true;
        }
        println!("{}", if fin{-1} else{time});
    }
}