#include <iostream>
#include <vector>

#include <atcoder/modint>

using mint = atcoder::modint998244353;

struct F {
    mint a, b;
    mint eval(mint x) const { return a * x + b; }
};
F compose(F f, F g) { return F{ g.a * f.a, g.a * f.b + g.b }; }
F id() { return F{ 1, 0 }; }

int main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);

    int n, q;
    std::cin >> n >> q;

    std::vector<std::vector<F>> seg(2 * n);
    for (int i = 0; i < n; ++i) {
        int a, b;
        std::cin >> a >> b;
        seg[n + i] = { F { a, b } };
    }
    for (int k = n - 1; k >= 1; --k) {
        const int siz = seg[2 * k].size();
        seg[k].resize(2 * siz);
        for (int s = 0; s < siz; ++s) {
            seg[k][0 * siz + s] = compose(seg[2 * k + 0][s], seg[2 * k + 1][s]);
            seg[k][1 * siz + s] = compose(seg[2 * k + 1][s], seg[2 * k + 0][s]);
        }
    }
    while (q --> 0) {
        int l, r, p, x;
        std::cin >> l >> r >> p >> x;

        auto query = [&](auto query, int tl, int tr, int k, int bit) -> F {
            if (r <= tl or tr <= l) return id();
            if (l <= tl and tr <= r) return seg[k][p & (bit - 1)];
            bit >>= 1;
            const bool flip = p & bit;
            const int tm = (tl + tr) >> 1;
            F sl = query(query, tl, tm, 2 * k +     flip, bit);
            F sr = query(query, tm, tr, 2 * k + not flip, bit);
            return compose(sl, sr);
        };

        std::cout << query(query, 0, n, 1, n).eval(x).val() << '\n';
    }
    return 0;
}