#!/bin/python import sys n,a,b,q = raw_input().strip().split(' ') n,a,b,q = [int(n),int(a),int(b),int(q)] c = map(int, raw_input().strip().split(' ')) for a0 in xrange(q): queryType,first,second = raw_input().strip().split(' ') queryType,first,second = [int(queryType),int(first),int(second)] # your code goes here if queryType==1: c[first]=second else: if(sum(c)==(a+b)): print "Yes" else: print "No"