#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 B, C;
      cin >> V >> K >> B >> C;
      V--;
      X[V] = (X[V] * B + C) % MOD;
      for (int w : E[V]){
        X[w] = (X[w] * B + C) % MOD;
      }
    }
    if (T == 3){
      int V;
      long long B, C;
      cin >> V >> B >> C;
      V--;
      auto dfs = [&](auto dfs, int v) -> void {
        X[v] = (X[v] * B + C) % MOD;
        for (int w : c[v]){
          dfs(dfs, w);
        }
      };
      dfs(dfs, V);
    }
    if (T == 4){
      int U, V;
      long long B, C;
      cin >> U >> V >> B >> C;
      U--;
      V--;
      while (true){
        if (U == V){
          X[U] = (X[U] * B + C) % MOD;
          break;
        }
        if (d[U] > d[V]){
          swap(U, V);
        }
        X[V] = (X[V] * B + C) % MOD;
        V = p[V];
      }
    }
  }
}