#include using namespace std; using Int = long long; const char newl = '\n'; template inline void chmin(T1 &a,T2 b){if(a>b) a=b;} template inline void chmax(T1 &a,T2 b){if(a void drop(const T &x){cout< vector read(size_t n){ vector ts(n); for(size_t i=0;i>ts[i]; return ts; } struct UnionFind{ int num; vector rs,ps; UnionFind(int n):num(n),rs(n,1),ps(n,0){ iota(ps.begin(),ps.end(),0); } int find(int x){ return (x==ps[x]?x:ps[x]=find(ps[x])); } bool same(int x,int y){ return find(x)==find(y); } void unite(int x,int y){ x=find(x);y=find(y); if(x==y) return; if(rs[x]>n; UnionFind uf(n); string ans; while(uf.count()!=1){ int a,b; cin>>a>>b; a--;b--; uf.unite(a,b); cin>>ans; } cout<