def f(x,l,r)
	if l==r
		$hs[[l,r]]+=1
	elsif (l<=x&&x<=r)
		$hs[[l,r]]+=1
		m=(l+r)/2
		f(x,l,m)
		f(x,m+1,r)
	end
end
def sum(l,r,l2,r2)
	if $hs.key?([l,r])==false
		return 0
	else
		if r<l2
			return 0
		end
		if r2<l 
			return 0
		end
		if(l2<=l&&r<=r2)
			return $hs[[l,r]]
		end
		m=(l+r)/2
		res=sum(l,m,l2,r2)
		res+=sum(m+1,r,l2,r2)
		return res
	end
end
$hs=Hash.new(0)
n=gets.to_i
ans=0
r=1073741823
n.times{
	x=gets.split.map{|e| e.to_i}
	if x[0]==0
		f(x[1],0,r)
	else
		ans+=sum(0,r,x[1],x[2])
	end
}
puts ans