const INF: usize = 1usize << 60;

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<usize> = temp.trim().split_whitespace().map(|s| s.parse().unwrap()).collect();
            (temp[0] as isize, 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();

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