import sys

def II(): return int(sys.stdin.buffer.readline())
def LI(): return list(map(int, sys.stdin.buffer.readline().split()))
def LLI(rows_number): return [LI() for _ in range(rows_number)]

class BitSum:
    def __init__(self, n):
        self.n = n+1
        self.table = [0]*self.n

    def add(self, i, x):
        i += 1
        while i < self.n:
            self.table[i] += x
            i += i & -i

    # [0,i]の和
    def sum(self, i):
        i += 1
        res = 0
        while i > 0:
            res += self.table[i]
            i -= i & -i
        return res

    # [l,r)の和
    def sumlr(self, l, r):
        if l >= r: return 0
        if l == 0: return self.sum(r-1)
        return self.sum(r-1)-self.sum(l-1)

mx=200005
n=II()
q=LLI(n)

xx=set()
for t,x,y in q:
    if t:
        xx.add(x)
        xx.add(y)
    else:
        xx.add(x)
enc={a:i for i,a in enumerate(sorted(xx))}

bit=BitSum(mx)
ans=0
for t,x,y in q:
    if t:
        l,r=enc[x],enc[y]+1
        ans+=bit.sumlr(l,r)
    else:
        x=enc[x]
        bit.add(x,y)

print(ans)