import sys
import io, os
input = io.BytesIO(os.read(0,os.fstat(0).st_size)).readline
from operator import itemgetter

N=int(input())
AT=[list(map(int,input().split())) for i in range(N)]
Q=int(input())
QU=[list(map(int,input().split()))+[i] for i in range(Q)]


# Segment tree(1-indexed,再帰を使わないもの)


def seg_function(x,y): # Segment treeで扱うfunction
    return [x[i]+y[i] for i in range(3)]

seg_el=1<<(N.bit_length()) # Segment treeの台の要素数
SEG=[[0,0,0] for i in range(2*seg_el)] # 1-indexedなので、要素数2*seg_el.Segment treeの初期値で初期化

for i in range(N): # Aを対応する箇所へupdate
    SEG[i+seg_el]=[AT[i][0],0,0]

for i in range(seg_el-1,0,-1): # 親の部分もupdate
    SEG[i]=seg_function(SEG[i*2],SEG[i*2+1])

def update(n,x,seg_el): # A[n]をxへ更新
    i=n+seg_el
    SEG[i]=x
    i>>=1 # 子ノードへ
    
    while i!=0:
        SEG[i]=seg_function(SEG[i*2],SEG[i*2+1])
        i>>=1
        
def getvalues(l,r): # 区間[l,r)に関するseg_functionを調べる
    L=l+seg_el
    R=r+seg_el
    ANS=[0,0,0]

    while L<R:
        if L & 1:
            ANS=seg_function(ANS , SEG[L])
            L+=1

        if R & 1:
            R-=1
            ANS=seg_function(ANS , SEG[R])
        L>>=1
        R>>=1

    return ANS

for i in range(N):
    a,t=AT[i]
    if a==0:
        continue
    QU.append([t,a,i])
    QU.append([t+a,i])

QU.sort(key=len)
QU.sort(key=itemgetter(0))

ANS=[-1]*Q

for q in QU:
    if len(q)==4:
        d,l,r,ind=q
        x,y,z=getvalues(l-1,r)

        #print(x,y,z)

        ANS[ind]=x-d*z+y

    elif len(q)==3:
        t,a,i=q
        update(i,[a,t-1,1],seg_el)
    else:
        t,i=q
        update(i,[0,0,0],seg_el)


print("\n".join(map(str,ANS)))