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#include <vector>
#include <iostream>
#include <algorithm>
#include <tuple>
#include <set>
#include <map>
#include <queue>
#include "kollib.h"
#include "message.h"
using namespace std;

#define pb push_back
#define mt make_tuple
#define st first
#define nd second

typedef long long ll;
typedef pair<int,int> pii;

/*
int Receive(int source){return 0;};
int GetInt(int source){return 0;};
void PutInt(int target, int value){;}
int NumberOfNodes(){return 0;}
int MyNodeId(){return 0;}
void Send(int target){}

int NumberOfStudents(){return 0;}
int FirstNeighbor(int i){return 0;}
int SecondNeighbor(int i){return 0;}

int NumberOfQueries(){return 0;}
int QueryFrom(int i){return 0;}
int QueryTo(int i){return 0;}
*/

#define poka(x) cerr << #x << " = " << x << endl;
#define ID 0

int main(){
	int mni = MyNodeId();
	int non = NumberOfNodes();
	int nos = NumberOfStudents();

	srand(50);
	vector<int> vpocz(non);
	set<int> spocz;												//			cerr << "A";
	for(int i = 0; i < non; ++i){
		ll x = 0;
		ll b = 1;
		while(x < ll(nos)){
			x *= b;
			x += ll(rand());
			b *= ll(RAND_MAX) + 1;
		}
		x = x % ll(nos) + 1;
		
		vpocz[i] = x;		
		if(i == mni and spocz.count(x)) return 0;
		spocz.insert(x);
	}									
	spocz.erase(vpocz[mni]);
										//if(mni == ID){		poka(mni);	for(int i = 0; i < vpocz.size(); ++i) cerr << vpocz[i] << " "; cerr << endl; }
	
	vector<int> lewo;
	lewo.pb(vpocz[mni]);
												//		cerr << "B";
	while(!spocz.count(lewo.back()) and lewo.size() < nos){				//	poka(lewo.back());
		int fn = FirstNeighbor(lewo.back());
		int sn = SecondNeighbor(lewo.back());
		if(lewo.size() == 1) {lewo.pb(min(sn,fn)); continue;}
		if(sn == lewo[lewo.size()-2]) lewo.pb(fn);
		else lewo.pb(sn);
	}							//	if(mni == ID){			poka(mni); poka("lewo");	for(int i = 0; i < lewo.size(); ++i) cerr << lewo[i] << " "; cerr << endl; }
														//		poka("Z");
	vector<int> prawo;
	prawo.pb(vpocz[mni]);
	while(!spocz.count(prawo.back()) and prawo.size() < nos){
		int fn = FirstNeighbor(prawo.back());
		int sn = SecondNeighbor(prawo.back());
		if(prawo.size() == 1) {prawo.pb(max(sn,fn)); continue;}
		if(sn == prawo[prawo.size()-2]) prawo.pb(fn);
		else prawo.pb(sn);
	}																		//		cerr << "C";
	
	int noq = NumberOfQueries();
	set<int> se;
	vector<int> from(noq+1), to(noq+1);
	for(int i = 1; i <= noq; ++i){
		from[i] = QueryFrom(i);
		to[i] = QueryTo(i);
		se.insert(from[i]);
		se.insert(to[i]);
	}
	
	vector<pii> znamlewo;
	for(int i = 0; i < lewo.size(); ++i){
		if(se.count(lewo[i])) znamlewo.pb(pii(lewo[i], i));
	}
	
	vector<pii> znamprawo;
	for(int i = 0; i < prawo.size(); ++i){
		if(se.count(prawo[i])) znamprawo.pb(pii(prawo[i], i));
	}
	
	PutInt(0, *lewo.begin());
	PutInt(0, prawo.back());
	PutInt(0, znamlewo.size()+1);
	
	for(int i = 0; i < znamlewo.size(); ++i){
		PutInt(0, znamlewo[i].st);
		PutInt(0, znamlewo[i].nd);
	}
	PutInt(0, lewo.back());
	PutInt(0, lewo.size()-1);
	
	if(mni == 0){
		PutInt(0, *prawo.begin());
		PutInt(0, prawo.back());
		PutInt(0, 0);
	}
	else{
		PutInt(0, *prawo.begin());
		PutInt(0, prawo.back());
		PutInt(0, znamprawo.size()+1);
		
		for(int i = 0; i < znamprawo.size(); ++i){
			PutInt(0, znamprawo[i].st);
			PutInt(0, znamprawo[i].nd);
		}
		PutInt(0, prawo.back());
		PutInt(0, prawo.size()-1);
	}
	
	Send(0);						//	if(mni == 0){			poka(mni); poka("prawo");	for(int i = 0; i < prawo.size(); ++i) cerr << prawo[i] << " "; cerr << endl; }
	
	if(mni) return 0;
	
	map<int,vector<pii> > g;	

	for(int i = 0; i < spocz.size()+1; ++i){
		int ins = Receive(-1);				//		poka(ins);
		for(int iii = 2; iii--;){
			int a = GetInt(ins);
			int b = GetInt(ins);
			int n = GetInt(ins);			//	poka(a); poka(b); poka(n);
			for(int k = 0; k < n; ++k){
				int v = GetInt(ins);		
				int d = GetInt(ins);
				g[a].push_back(pii(v,d));		//	poka("nast");poka(a); poka(v); poka(d);
			}
		}
	}
	const int inf = 1000*1000*1000 + 9;
	map<int,int> d;
	for(auto it1 = g.begin(); it1 != g.end(); ++it1){
		int skad = it1->first;
		d[skad] = inf;
		
		for(auto it2 = (it1->second).begin(); it2 != (it1->second).end(); ++it2){
			int dokad = it2->first;
			d[dokad] = inf;
		}
	}
	
	queue<int> q;	
	set<int> byl;
	
	int v0 = vpocz[0];
	
	/*
	for(int i = 0; i < g[v0].size(); ++i){
		int x = g[v0][i].st;
		int o = g[v0][i].nd;
		cerr << "xxx" << " "<< v0 << "->" << x << "  " << o << endl;
	}
	*/	
	
	d[v0] = 0;
	q.push(v0);
	while(!q.empty()){
		int v = q.front(); q.pop();
		if(byl.count(v)) continue;				
		byl.insert(v);
		
		for(int i = 0; i < g[v].size(); ++i){
			int x = g[v][i].st;
			int o = g[v][i].nd;
			if(d[x] > d[v] + o) d[x] = d[v] + o;	//	cerr << "" << v << "->" << x << "  " << o << endl;
			q.push(x);								//poka(x);
		}
	}
	
	for(int i = 1; i <= noq; ++i){
		int f = d[from[i]];
		int t = d[to[i]];
		cout << min(abs(f-t),nos - abs(f-t)) << "\n";
	}
	
	return 0;
}