#include <bits/stdc++.h>
using namespace std;
const long long MOD = 998244353;
int main(){
  int N, Q;
  cin >> N >> Q;
  vector<vector<int>> E(N);
  for (int i = 0; i < N - 1; i++){
    int A, B;
    cin >> A >> B;
    A--;
    B--;
    E[A].push_back(B);
    E[B].push_back(A);
  }
  vector<long long> X(N);
  for (int i = 0; i < N; i++){
    cin >> X[i];
  }
  vector<int> p(N, -1);
  vector<vector<int>> c(N);
  vector<int> d(N, 0);
  queue<int> q;
  q.push(0);
  while (!q.empty()){
    int v = q.front();
    q.pop();
    for (int w : E[v]){
      if (w != p[v]){
        p[w] = v;
        c[v].push_back(w);
        d[w] = d[v] + 1;
        q.push(w);
      }
    }
  }
  for (int i = 0; i < Q; i++){
    int T;
    cin >> T;
    if (T == 1){
      int V;
      cin >> V;
      V--;
      cout << X[V] << endl;
    }
    if (T == 2){
      int V, K;
      long long C, D;
      cin >> V >> K >> C >> D;
      V--;
      vector<int> d2(N, -1);
      d2[V] = 0;
      queue<int> q;
      q.push(V);
      while (!q.empty()){
        int v = q.front();
        q.pop();
        for (int w : E[v]){
          if (d2[w] == -1){
            d2[w] = d2[v] + 1;
            q.push(w);
          }
        }
      }
      for (int j = 0; j < N; j++){
        if (d2[j] <= K){
          X[j] = (X[j] * C + D) % MOD;
        }
      }
    }
    if (T == 3){
      int V;
      long long C, D;
      cin >> V >> C >> D;
      V--;
      auto dfs = [&](auto dfs, int v) -> void {
        X[v] = (X[v] * C + D) % MOD;
        for (int w : c[v]){
          dfs(dfs, w);
        }
      };
      dfs(dfs, V);
    }
    if (T == 4){
      int U, V;
      long long C, D;
      cin >> U >> V >> C >> D;
      U--;
      V--;
      while (true){
        if (U == V){
          X[U] = (X[U] * C + D) % MOD;
          break;
        }
        if (d[U] > d[V]){
          swap(U, V);
        }
        X[V] = (X[V] * C + D) % MOD;
        V = p[V];
      }
    }
  }
}