#define I insert
#define S second
ll@N,@K,@a[7N];set<pair<ll,ll>>A,C,E;rep(i,N)A.I({a[i],i+1}),C.I({a[2N+2i],2i+1}),C.I({a[2N+2i+1],2i+2}),E.I({a[6N+i],i+1});rep(K){auto i=E.begin(),j=A.upper_bound({i->first,N}),k=C.upper_bound({j->first,2N}),l=k++;wt(j->S,k->S,l->S,i->S);A.erase(j),C.erase(k),C.erase(l),E.erase(i);}