import sys
MOD = 998244353

def main():
    import sys
    sys.setrecursionlimit(1 << 25)
    N, Q = map(int, sys.stdin.readline().split())
    a = []
    b = []
    for _ in range(N):
        ai, bi = map(int, sys.stdin.readline().split())
        a.append(ai % MOD)
        b.append(bi % MOD)
    
    for _ in range(Q):
        l, r, p, x = map(int, sys.stdin.readline().split())
        res = x % MOD
        for i in range(l, r):
            idx = i ^ p
            a_i = a[idx]
            b_i = b[idx]
            res = (a_i * res + b_i) % MOD
        print(res)

if __name__ == "__main__":
    main()