class SegmentTree:
    def __init__(self, ini, op, e):
        self.n = len(ini)
        self.op = op
        self.e = e
        self.v = [e] * (2 * self.n)
    
        for i in range(self.n):
            self.v[self.n + i] = ini[i]
  
        for i in range(self.n - 1, 0, -1):
            self.v[i] = op(self.v[2 * i], self.v[2 * i + 1])

    def set(self, i, x):
        i += self.n
        self.v[i] = x
        while i > 1:
            i >>= 1
            self.v[i] = self.op(self.v[2 * i], self.v[2 * i + 1])

    def prod(self, l, r):
        resl = self.e
        resr = self.e

        l += self.n
        r += self.n
        while l < r:
            if l & 1:
                resl = self.op(resl, self.v[l])
                l += 1
            if r & 1:
                resr = self.op(self.v[r - 1], resr)
            l >>= 1
            r >>= 1
        return self.op(resl, resr)
    
    def get(self, i):
        return self.v[i + self.n]
    
    def dump(self):
        print(self.v[self.n:])

def op(x, y):
    return x * y

e = 1


N, B, Q = map(int, input().split())

A = list(map(int, input().split()))

seg = SegmentTree(A, op, e)

for _ in range(Q):
    j, m, l, r = map(int, input().split())

    x = seg.get(j)

    if x % B == 0 and m == B:
        x //= B
    else:
        x *= m
    
    seg.set(j, x)
    
    print(seg.prod(l, r + 1) % B)