#include "bits/stdc++.h" using namespace std; #define int long long #define FOR(i, a, b) for(int i=(a);i<(b);i++) #define RFOR(i, a, b) for(int i=(b-1);i>=(a);i--) #define REP(i, n) for(int i=0; i<(n); i++) #define RREP(i, n) for(int i=(n-1); i>=0; i--) #define REP1(i, n) for(int i=1; i<=(n); i++) #define RREP1(i, n) for(int i=(n); i>=1; i--) #define ALL(a) (a).begin(),(a).end() #define UNIQUE_SORT(l) sort(ALL(l)); l.erase(unique(ALL(l)), l.end()); #define CONTAIN(a, b) find(ALL(a), (b)) != (a).end() #define out(...) printf(__VA_ARGS__) int dxy[] = {0, 1, 0, -1, 0}; void solve(); signed main() { #if DEBUG std::ifstream in("input.txt"); std::cin.rdbuf(in.rdbuf()); #endif cin.tie(0); ios::sync_with_stdio(false); solve(); return 0; } /*================================*/ #if DEBUG #define SIZE 100 #else #define SIZE 123450 #endif int N,M,Q; struct UnionFind { vector parent; vector A; // 個別 vector B; // 全体 vector> vec; int size; UnionFind(int size):size(size) { reset(size); } void reset(int size) { this->size = size; parent.resize(size); A.resize(size, 0); B.resize(size, 0); vec.resize(size); REP(i,size) parent[i]=i; REP(i,size) vec[i].push_back(i); } int root(int i) { if (parent[i] == i) return i; return parent[i] = root(parent[i]); } void merge(int i, int j) { int ir = root(i); int jr = root(j); if (ir == jr) return; int next = vec[ir].size() >= vec[jr].size() ? ir : jr; int hide = (ir == next) ? jr : ir; // hideの中身をnextにマージ for (int i:vec[hide]) { A[i] += B[hide] - B[next]; // 差分更新 vec[next].push_back(i); } vec[hide].clear(); parent[ir] = parent[jr] = next; } bool same(int i, int j) { return root(i) == root(j); } void add(int i, int a) { B[root(i)] += a; } int val(int i) { return A[i] + B[root(i)]; } }; void solve() { cin>>N>>Q; int T,A,B; auto uf = UnionFind(N); REP(q,Q) { cin>>T>>A>>B; A--; if (T==1) { B--; uf.merge(A, B); } if (T==2) { uf.add(A, B); } if (T==3) { out("%lld\n", uf.val(A)); } } }