#!/bin/python3

import sys

mod = 10**9 + 7
n,a,b,q = input().strip().split(' ')
n,a,b,q = [int(n),int(a),int(b),int(q)]
c = list(map(int, input().strip().split(' ')))
root = (pow(a,mod-2,mod)*(-b))%mod
#print(root)
powers = []
for i in range(len(c)):
    powers.append(pow(root,i,mod))
    

for a0 in range(q):
    queryType,first,second = input().strip().split(' ')
    queryType,first,second = [int(queryType),int(first),int(second)]
    if queryType == 1:
        c[first] = second
    else:
        product = 0
        for i in range(second - first + 1):
            product += (powers[i]*c[first + i])%mod
        product = product%mod
        #print(product)
        #print(powers)
        
        if product == 0:
            print("Yes")
        else:
            print("No")
    # your code goes here