#include <stdio.h>

const int Mod = 998244353, bit[20] = {1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288};
int memo[19][262144][2], a[262144], b[262144];

int recursion(int l, int k, int x)
{
	if (memo[k][l][0] >= 0) return ((long long)memo[k][l][0] * x + memo[k][l][1]) % Mod;
	else if (k == 0) {
		memo[k][l][0] = a[l];
		memo[k][l][1] = b[l];
		return ((long long)a[l] * x + b[l]) % Mod;
	}
	x = recursion(l, k - 1, x);
	x = recursion(l ^ bit[k-1], k - 1, x);
	memo[k][l][0] = (long long)memo[k-1][l][0] * memo[k-1][l ^ bit[k-1]][0] % Mod;
	memo[k][l][1] = ((long long)memo[k-1][l ^ bit[k-1]][0] * memo[k-1][l][1] + memo[k-1][l ^ bit[k-1]][1]) % Mod;
	return x;
}

int solve2(int l, int r, int p, int x, int s)
{
	if (l == r) return x;
	
	int i;
	for (i = s; l + bit[i] > r; i--);
	return solve2(l + bit[i], r, p, recursion(l ^ p, i, x), i - 1);
}

int solve1(int l, int r, int p, int x, int s)
{
	if (l == r) return x;
	
	int i;
	for (i = s; (l & bit[i-1]) == 0 && l + bit[i] <= r; i++);
	if (l + bit[i] <= r) return solve1(l + bit[i-1], r, p, recursion(l ^ p, i - 1, x), i);
	else return solve2(l + bit[i-1], r, p, recursion(l ^ p, i - 1, x), i - 1);
}

int main()
{
	int i, N, Q;
	scanf("%d %d", &N, &Q);
	for (i = 0; i < N; i++) scanf("%d %d", &(a[i]), &(b[i]));
	
	int l, r, p, x;
	for (i = 0; bit[i] <= N; i++) for (l = 0; l < N; l++) memo[i][l][0] = -1;
	for (i = 1; i <= Q; i++) {
		scanf("%d %d %d %d", &l, &r, &p, &x);
		printf("%d\n", solve1(l, r, p, x, 1));
	}
	return 0;
}