N,M,P,Q = map(int,input().split())

num = P-2
num = int(bin(num)[2:])

for i in range(Q):
    x,f = map(int,input().split())
    cels = []
    res = 1
    if x%P == 0:
        if f == 0:
            print(M)
        else:
            print(0)
    else:
        for j in range(0,len(str(num))):
            if cels == []:
                cels.append(x)
            else:
                cels.append((cels[-1]**2)%P)
            if str(num)[j] == "1":
                res *= cels[-1]
                res %= P
        y = (f*res)%P
        if y <= M and y != 0:
            print((M-y)//P+1)
        elif y == 0:
            print((M-y)//P)
        else:
            print(0)