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 carries = (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();

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