#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
//using mint = modint998244353;
//const int mod = 998244353;
//using mint = modint1000000007;
//const int mod = 1000000007;
//const int INF = 1e9;
//const long long LINF = 1e18;
#define rep(i, n) for (int i = 0; i < (n); ++i)
#define rep2(i,l,r)for(int i=(l);i<(r);++i)
#define rrep(i, n) for (int i = (n-1); i >= 0; --i)
#define rrep2(i,l,r)for(int i=(r-1);i>=(l);--i)
#define all(x) (x).begin(),(x).end()
#define allR(x) (x).rbegin(),(x).rend()
#define P pair<int,int>
template<typename A, typename B> inline bool chmax(A & a, const B & b) { if (a < b) { a = b; return true; } return false; }
template<typename A, typename B> inline bool chmin(A & a, const B & b) { if (a > b) { a = b; return true; } return false; }
#include <vector>
using  S = long long;
S op(S a, S b) { return a + b; }
S e() { return 0; }
struct HeavyLightDecomposition {
	HeavyLightDecomposition(std::vector<std::vector<int>> &_g, std::vector<S>&_val) :g(_g), val(_val) {
		n = g.size();
		sz.resize(n);
		par.resize(n);
		in.resize(n);
		out.resize(n);
		rev.resize(n);
		head.resize(n);
		deep.resize(n);
	}
	int n;
	std::vector<std::vector<int>>g;
	std::vector<int>sz, par, in, out, rev, head, deep;
	std::vector<S>val;
	segtree<S, op, e>seg;
	void build() {
		dfs_sz(0);
		int time = 0;
		dfs_hld(0, time);
		initSegmentTree();
	}
	void dfs_sz(int v, int d = 0, int p = -1) {
		deep[v] = d;
		par[v] = p;
		sz[v] = 1;
		if (g[v].size() && (p == g[v][0]))std::swap(g[v][0], g[v].back());
		for (auto &e : g[v]) {
			if (p == e)continue;
			dfs_sz(e, d + 1, v);
			sz[v] += sz[e];
			if (sz[g[v][0]] < sz[e])std::swap(g[v][0], e);
		}
	}
	void dfs_hld(int v, int &time, int p = -1) {
		in[v] = time;
		time++;
		rev[in[v]] = v;
		for (auto &e : g[v]) {
			if (p == e)continue;
			if (e == g[v][0])head[e] = head[v];
			else head[e] = e;
			dfs_hld(e, time, v);
		}
		out[v] = time;
	}
	void initSegmentTree() {
		std::vector<S>_val(n);
		for (int i = 0; i < n; ++i)_val[i] = val[rev[i]];
		seg = segtree<S, op, e>(_val);
	}
	S query(int u, int v) {
		S ret = e();
		for (;; v = par[head[v]]) {
			if (in[u] > in[v])std::swap(u, v);
			if (head[u] == head[v])break;
			auto get = seg.prod(in[head[v]], in[v] + 1);
			ret = op(ret, get);
		}
		auto get = seg.prod(in[u], in[v] + 1);
		ret = op(ret, get);
		return ret;
	}
	int la(int v, int k) {
		while (1) {
			int u = head[v];
			if (in[v] - k >= in[u])return rev[in[v] - k];
			k -= in[v] - in[u] + 1;
			v = par[u];
		}
	}
	int lca(int u, int v) {
		for (;; v = par[head[v]]) {
			if (in[u] > in[v])std::swap(u, v);
			if (head[u] == head[v])return u;
		}
	}
	int dist(int u, int v) {
		return deep[u] + deep[v] - 2 * deep[lca(u, v)];
	}
	// point update
	void update_point(int u, S x) {
		seg.set(in[u], x);
	}
	void debug() {
		for (int i = 0; i < n; ++i) std::cout << seg.prod(i, i + 1) << " ";
		std::cout << std::endl;
	}
};
#include <vector>
#include <algorithm>
class Tree {
public:
	Tree(int n, int root) : n(n), root(root) {
		edge.resize(n);
		for (int i = 0; i < MAXLOGV; i++) parent[i].resize(n);
		depth.resize(n);
	}
	// uとvをつなぐ
	// lcaを求めることが主目的なので無向グラフとしている
	void unite(int u, int v) {
		edge[u].push_back(v);
		edge[v].push_back(u);
	}
	// initする
	// コンストラクタだけじゃなくてこれも呼ばないとlcaが求められないぞ
	void init() {
		dfs(root, -1, 0);
		for (int k = 0; k + 1 < MAXLOGV; k++) {
			for (int v = 0; v < n; v++) {
				if (parent[k][v] < 0) parent[k + 1][v] = -1;
				else parent[k + 1][v] = parent[k][parent[k][v]];
			}
		}
	}
	// uとvのlcaを求める
	int lca(int u, int v) const {
		if (depth[u] > depth[v]) std::swap(u, v);
		for (int k = 0; k < MAXLOGV; k++) {
			if ((depth[v] - depth[u]) >> k & 1) {
				v = parent[k][v];
			}
		}
		if (u == v) return u;
		for (int k = MAXLOGV - 1; k >= 0; k--) {
			if (parent[k][u] != parent[k][v]) {
				u = parent[k][u];
				v = parent[k][v];
			}
		}
		return parent[0][u];
	}
	// uのn個親を求める
	int pare(int v, int n) {
		if (depth[v] < n)return -1;
		n = std::min(n, depth[v]);
		int idx = MAXLOGV;
		while (n) {
			for (int i = idx - 1; i >= 0; --i) {
				if (n < (1 << i))continue;
				if (-1 == parent[i][v])continue;
				n -= (1 << i);
				v = parent[i][v];
				idx = i;
				break;
			}
		}
		return v;
	}
	// uからvに向かってd進んだ頂点を返す
	int JumpOnTree(int u, int v, int d) {
		if (0 == d)return u;
		int distuv = dist(u, v);
		if (distuv < d)return -1;
		int l = lca(u, v);
		if (l == u)return pare(v, distuv - d);
		if (l == v)return pare(u, d);
		int distlu = dist(l, u);
		if (distlu >= d)return pare(u, d);
		return pare(v, distuv - d);
	}
	// uとvの距離を求める
	// edgeを定義しないといけない時はこれじゃダメ
	int dist(int u, int v) const {
		int p = lca(u, v);
		return (depth[u] - depth[p]) + (depth[v] - depth[p]);
	}
	//頂点wが頂点u,vのパス上に存在するか
	bool on_path(int u, int v, int w) {
		return (dist(u, w) + dist(v, w) == dist(u, v));
	}
	int dfs(int v, int p, int d) {
		int ret = 1;
		parent[0][v] = p;
		depth[v] = d;
		for (int next : edge[v]) {
			if (next == p) continue;
			auto get = dfs(next, v, d + 1);
			ret += get;
		}
		return ret;
	}
	static const int MAXLOGV = 25;
	// グラフの隣接リスト表現
	std::vector<std::vector<int>>edge;
	// 頂点の数
	int n;
	// 根ノードの番号
	int root;
	// 親ノード
	std::vector<int> parent[MAXLOGV];
	// 根からの深さ
	std::vector<int> depth;
};
int main() {
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	int n, q; cin >> n >> q;
	vector<long long>a(n + 1);
	rep(i, n)cin >> a[i + 1];
	Tree tree(n + 1, 0);
	vector<vector<int>>g(n + 1);
	g[0].push_back(1);
	g[1].push_back(0);
	tree.unite(0, 1);
	rep(i, n - 1) {
		int a, b; cin >> a >> b;
		g[a].push_back(b);
		g[b].push_back(a);
		tree.unite(a, b);
	}
	tree.init();
	vector<long long>sa(n + 1);
	rep2(i, 1, n + 1) {
		int p = tree.pare(i, 1);
		sa[p] += a[i];
	}
	HeavyLightDecomposition hld(g, sa);
	hld.build();
	while (q--) {
		int t; cin >> t;
		if (0 == t) {
			int v, x; cin >> v >> x;
			a[v] += x;
			int p = tree.pare(v, 1);
			sa[p] += x;
			hld.update_point(p, sa[p]);
		}
		else {
			int u, v; cin >> u >> v;
			int l = tree.lca(u, v);
			int p = tree.pare(l, 1);
			if (u == l || v == l) {
				long long ans = a[p] + sa[p] + hld.query(u, v);
				cout << ans << endl;
			}
			else {
				long long ans = 0;
				ans += hld.query(u, l);
				ans += hld.query(v, l);
				ans += a[p] + a[l] - sa[l];
				cout << ans << endl;
			}
		}
	}
	return 0;
}