Problem: The New Year holidays are over, but Resha doesn't want to throw away the New Year tree. He invited his best friends Kerim and Gural to help him to redecorate the New Year tree.

The New Year tree is an undirected tree with n vertices and root in the vertex 1.

You should process the queries of the two types:

  1. Change the colours of all vertices in the subtree of the vertex v to the colour c. 
  2. Find the number of different colours in the subtree of the vertex v. 

Input

The first line contains two integers n, m (1 ≤ n, m ≤ 4·105) — the number of vertices in the tree and the number of the queries.

The second line contains n integers ci (1 ≤ ci ≤ 60) — the colour of the i-th vertex.

Each of the next n - 1 lines contains two integers xj, yj (1 ≤ xj, yj ≤ n) — the vertices of the j-th edge. It is guaranteed that you are given correct undirected tree.

The last m lines contains the description of the queries. Each description starts with the integer tk (1 ≤ tk ≤ 2) — the type of the k-th query. For the queries of the first type then follows two integers vk, ck (1 ≤ vk ≤ n, 1 ≤ ck ≤ 60) — the number of the vertex whose subtree will be recoloured with the colour ck. For the queries of the second type then follows integer vk (1 ≤ vk ≤ n) — the number of the vertex for which subtree you should find the number of different colours.

Output

For each query of the second type print the integer a — the number of different colours in the subtree of the vertex given in the query.

Each of the numbers should be printed on a separate line in order of query appearing in the input.

Examples

Input

7 10
1 1 1 1 1 1 1
1 2
1 3
1 4
3 5
3 6
3 7
1 3 2
2 1
1 4 3
2 1
1 2 5
2 1
1 6 4
2 1
2 2
2 3


Output

2
3
4
5
1
2


Input

23 30
1 2 2 6 5 3 2 1 1 1 2 4 5 3 4 4 3 3 3 3 3 4 6
1 2
1 3
1 4
2 5
2 6
3 7
3 8
4 9
4 10
4 11
6 12
6 13
7 14
7 15
7 16
8 17
8 18
10 19
10 20
10 21
11 22
11 23
2 1
2 5
2 6
2 7
2 8
2 9
2 10
2 11
2 4
1 12 1
1 13 1
1 14 1
1 15 1
1 16 1
1 17 1
1 18 1
1 19 1
1 20 1
1 21 1
1 22 1
1 23 1
2 1
2 5
2 6
2 7
2 8
2 9
2 10
2 11
2 4


Output

6
1
3
3
2
1
2
3
5
5
1
2
2
1
1
1
2
3

Solution (in CPP):

Solution:
#include <bits/stdc++.h>
using namespace std;
long long n, m;
vector<long long> g[400001];
long long v_r[400001], v_l[400001];
long long colors[400001];
long long c[400001];
long long t[4 * 400001], tc[4 * 400001];
void push(long long v) {
  if (t[v] != (-1)) {
    t[v << 1] = t[(v << 1) + 1] = t[v];
    tc[v << 1] = tc[(v << 1) + 1] = t[v];
    t[v] = -1;
  }
}
void build(long long v, long long tl, long long tr) {
  if (tl == tr)
    tc[v] = t[v] = colors[tl];
  else {
    long long md = (tl + tr) >> 1;
    build(v << 1, tl, md);
    build((v << 1) + 1, md + 1, tr);
    t[v] = -1;
    tc[v] = tc[v << 1] | tc[(v << 1) + 1];
  }
}
void update(long long v, long long tl, long long tr, long long l, long long r,
            long long color) {
  if (l > r) return;
  if (tl == l && tr == r)
    tc[v] = t[v] = color;
  else {
    long long md = (tl + tr) >> 1;
    push(v);
    update(v << 1, tl, md, l, min(md, r), color);
    update((v << 1) + 1, md + 1, tr, max(l, md + 1), r, color);
    tc[v] = tc[v << 1] | tc[(v << 1) + 1];
  }
}
long long getBitsCount(long long v, long long tl, long long tr, long long l,
                       long long r) {
  if (l > r) return 0;
  if (tl == l && tr == r)
    return tc[v];
  else {
    push(v);
    long long md = (tr + tl) >> 1;
    return getBitsCount(v << 1, tl, md, l, min(r, md)) |
           getBitsCount((v << 1) + 1, md + 1, tr, max(md + 1, l), r);
  }
}
long long get(long long v, long long tl, long long tr, long long pos) {
  if (tl == tr)
    return t[v];
  else {
    long long md = (tl + tr) >> 1;
    push(v);
    if (pos <= md)
      return get(v << 1, tl, md, pos);
    else
      return get((v << 1) + 1, md + 1, tr, pos);
  }
}
long long mCounter;
long long dfsNumers(long long v = 1, long long p = (-1)) {
  v_r[v] = v_l[v] = ++mCounter;
  long long ck = 0;
  for (auto to : g[v])
    if (to != p) v_r[v] = dfsNumers(to, v);
  return v_r[v];
}
long long get_bits(long long x) {
  long long cx = 0;
  while (x) {
    if (x & 1) ++cx;
    x >>= 1;
  }
  return cx;
}
int main(void) {
  scanf("%I64d %I64d", &n, &m);
  for (register long long i = 1; i <= n; ++i) scanf("%I64d", c + i), --c[i];
  for (register long long i = 0; i < n - 1; ++i) {
    long long x, y;
    scanf("%I64d %I64d", &x, &y);
    g[x].push_back(y);
    g[y].push_back(x);
  }
  dfsNumers();
  for (register long long i = 1; i <= n; ++i) colors[v_l[i]] = 1ll << c[i];
  build(1, 1, n);
  while (m--) {
    long long t, v, cp;
    scanf("%I64d %I64d", &t, &v);
    if (t == 1)
      scanf("%I64d", &cp), update(1, 1, n, v_l[v], v_r[v], 1ll << (cp - 1));
    else {
      long long res = getBitsCount(1, 1, n, v_l[v], v_r[v]);
      printf("%I64d\n", get_bits(getBitsCount(1, 1, n, v_l[v], v_r[v])));
    }
  }
  return 0;
}