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

    let mut sum = 0;
    for &ti in &t {
        if ti == -1 {
            sum += 6001;
        } else {
            sum += ti as u32;
        }
        if sum > 6000 {
            println!("-1");
        } else {
            println!("{}", 6000u32.saturating_sub(sum));
        }
    }
}