fn main() {
    let mut nq = String::new();
    std::io::stdin().read_line(&mut nq).ok();
    let nq: Vec<usize> = nq.trim().split_whitespace().map(|s| s.parse().unwrap()).collect();
    let n = nq[0];
    let q = nq[1];
    let mut items = (0..n).map(|_| {
            let mut temp = String::new();
            std::io::stdin().read_line(&mut temp).ok();
            let temp: Vec<isize> = temp.trim().split_whitespace().map(|s| s.parse().unwrap()).collect();
            (temp[0], temp[1])
        })
        .collect::<Vec<_>>();
    let mut x = String::new();
    std::io::stdin().read_line(&mut x).ok();
    let x: Vec<isize> = x.trim().split_whitespace().map(|s| s.parse().unwrap()).collect();

    items.sort();
    let mut x = (0..q).map(|i| (x[i], i)).collect::<Vec<_>>();
    x.sort();
    let mut summary = (0..n).map(|i| (items[i].0 - x[0].0).abs() * items[i].1).sum::<isize>();
    let mut result = vec![0isize; q];
    result[x[0].1] = summary;
    let total_weights = items.iter().map(|&(_, w)| w).sum::<isize>();
    let mut lidx = 0usize;
    let mut lweights = 0isize;
    while lidx < n && items[lidx].0 < x[0].0 {
        lweights += items[lidx].1;
        lidx += 1;
    }
    for i in 1..q {
        let (px, _) = x[i-1];
        let (cx, qidx) = x[i];
        let diff = cx - px;
        summary += lweights * diff;
        summary -= (total_weights - lweights) * diff;
        while lidx < n && items[lidx].0 < cx {
            let (x, w) = items[lidx];
            summary += 2 * (cx - x) * w;
            lweights += w;
            lidx += 1;
        }
        result[qidx] = summary;
    }
    for &v in result.iter() {
        println!("{}", v);
    }
}