#include <bits/stdc++.h>
#define rep(i, a, n) for(int i = a; i < n; i++)
using namespace std;
using ll = long long;
using P = pair<int, int>;

vector<int> to[500005];
vector<int> ans;
int b;

void dfs(int v, int p = -1){
    for(auto u : to[v]){
        if(u == p) continue;
        ans[u] += b;
        dfs(u, v);
    }
}

int main()
{
    int n, q;
    cin >> n >> q;
    ans.resize(n);
    rep(i, 0, q){
        int t, a;
        cin >> t >> a >> b;
        a--;
        if(t == 1){
            b--;
            to[a].push_back(b);
            to[b].push_back(a);
        }
        else if(t == 2){
            ans[a] += b;
            dfs(a, -1);
        }
        else{
            cout << ans[a] << endl;
        }
    }
    return 0;
}