# パス減算 → 破壊チェック → 破壊された辺に掛かっていた重みを上にパス加算
# 必要な操作: 辺属性, パス加算, 区間 min の max-right, 1 辺取得

import sys
sys.setrecursionlimit(2 ** 20)
input = sys.stdin.readline
INF = 1 << 61
SIZ = 1 << 19
LOG = 19

d = [INF] * (SIZ * 2)
lz = [0] * (SIZ * 2)

def all_apply(k: int, f: int):
    d[k] += f
    lz[k] += f

def push(k: int):
    if lz[k]:
        all_apply(2 * k, lz[k])
        all_apply(2 * k + 1, lz[k])
        lz[k] = 0

def update(k: int):
    d[k] = min(d[k << 1], d[k << 1 | 1])

def get(p: int):
    p += SIZ
    for i in range(LOG, 0, -1): push(p >> i)
    return d[p]

def add(l: int, r: int, x: int):
    if l == r: return
    l += SIZ
    r += SIZ
    for i in range(LOG, 0, -1):
        if l >> i << i != l: push(l >> i)
        if r >> i << i != r: push((r - 1) >> i)
    L = l
    R = r
    while L < R:
        if L & 1:
            all_apply(L, x)
            L += 1
        if R & 1:
            R -= 1
            all_apply(R, x)
        L >>= 1
        R >>= 1
    for i in range(1, LOG + 1):
        if l >> i << i != l: update(l >> i)
        if r >> i << i != r: update((r - 1) >> i)

def broken_edge() -> int:
    r = 2
    for _ in range(LOG):
        push(r - 1)
        r <<= 1
        if d[r - 1] > 0:
            r -= 1
    return r - SIZ - 1

N, Q = map(int, input().split())
edge: list[list[int]] = [list(map(int, input().split())) for _ in range(N - 1)]
g: list[list[int]] = [[] for _ in range(N)]

for e in edge:
    e[0] -= 1
    e[1] -= 1
    a, b, c = e
    g[a].append(b)
    g[b].append(a)

siz = [1] * N
parent = [-1] * N
C = [0] * N

q = [0]
for i in q:
    for j in g[i]:
        parent[j] = i
        q.append(j)
        g[j].remove(i)

for i in reversed(q):
    p = parent[i]
    if p != -1:
        siz[p] += siz[i]
    if g[i]:
        j = max(g[i], key=lambda x: siz[x])
        g[i].remove(j)
        g[i].append(j)

C[0] = INF
for a, b, c in edge:
    a = min(a, b, key=lambda x: siz[x])
    C[a] = c

heavy = [0] * N
index = [0] * N

idx = 0
q = [0]
while q:
    i = q.pop()
    index[i] = idx
    add(idx, idx + 1, C[i] - INF)
    idx += 1
    if not g[i]:
        continue
    for j in g[i]:
        heavy[j] = j
    heavy[g[i][-1]] = heavy[i]
    q.extend(g[i])

rev = [-1] * N
for i in range(N):
    rev[index[i]] = i

vertices = N
erased = [False] * N

def path_add(i: int, x: int):
    while i > 0:
        h = heavy[i]
        add(index[h], index[i] + 1, x)
        i = parent[h]

def dfs(i: int):
    q = [i]
    global vertices
    while q:
        i = q.pop()
        if erased[i]:
            continue
        erased[i] = True
        vertices -= 1
        x = C[i] - get(index[i])
        add(index[i], index[i] + 1, INF)
        q.extend(g[i])

for _ in range(Q):
    query = input()
    if query[0] == '1':
        v, x = map(int, query[2:].split())
        v -= 1
        # 0 - v パスに x を減算
        path_add(v, -x)
        # <= 0 の辺を切る
        while d[1] <= 0:
            i = rev[broken_edge()]
            path_add(i, C[i] - get(index[i]))
            dfs(i)
    else:
        print(vertices)