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#include "message.h"
#include "kollib.h"
#include <algorithm>
#include <iostream>
#include <cassert>
#include <vector>
#include <cstdio>
#include <array>
#include <deque>
#include <cmath>
#include <stack>
#include <queue>
#include <set>
#include <map>
namespace {
	using namespace std;

	typedef vector<int> vint;
	typedef long long unsigned ulo;
	typedef long long lint;
	
	void __attribute__((unused)) spacje(int k) {
		int magic;
		static stack<int*> stos;
		while (!stos.empty() && stos.top() <= &magic) stos.pop();
		stos.push(&magic);
		for (int n = k * stos.size(); n--;) fprintf(stderr, " ");
	}
	
	#define BOTH(x) for (int x = 0; x < 2; ++x)
	
	#define UPlt(xx, yy) (xx) = min(xx, yy)
	#define UPgt(xx, yy) (xx) = max(xx, yy)
	
	struct in_t {
		template<class T>
		operator T () {
			static bool __attribute__((unused)) dummy = ios_base::sync_with_stdio(false);
			T x;
			cin >> x;
			return x;
		}
	};
	in_t __attribute__((unused)) in;
	
	class Print {
		ostream & os;
		bool nfirst;
	 public:
		Print(ostream & os = cout) : os(os), nfirst(false) {}
		~Print() { os << endl; }
		template<class T> Print & operator , (T const& e) {
			if (nfirst) os << " "; os << e; nfirst = true; return *this; }
	};
	
	#define print Print{cout},
	#define prerr Print{cerr},
	
	template <class T>
	struct Range {
		struct Intit {
			T x; Intit(T x) : x(x) {}
			T & operator * () { return x; };
			bool operator != (Intit other) { return x < other.x; }
			void operator ++ () { ++x; }
		};
		
		T b, e;
		explicit Range(T n) : b(0), e(n) {}
		Range(T b, T e) : b(b), e(e) {}
		Intit begin() { return b; }
		Intit end() { return e; }
	};
	
	template <class T>
	Range<T> range(T n) { return Range<T>(n); }
	
	template <class T>
	Range<T> range(T b, T e) { return Range<T>(b, e); }

	template <class T>
	Range<T> inclusive(T b, T e) { return Range<T>(b, e + 1); }
	
	#define _ __attribute__((unused)) _
};

#define dprintf(...) if (1) spacje(2), fprintf(stderr, __VA_ARGS__)

#define TEST 0
#if TEST
	int n, m;
	vector<vector<int>> v;
	vector<vector<int>> w;
	void prepare() {
		n = in;
		v.resize(n+1);
		for (int i : inclusive(1, n)) {
			v[i].push_back(in);
			v[i].push_back(in);
		}
		m = in;
		w.resize(m+1);
		for (int i : inclusive(1, m)) {
			w[i].push_back(in);
			w[i].push_back(in);
		}
	}
	
	int NumberOfStudents() { return n; }
	int FirstNeighbor(int i) { return v[i][0]; }
	int SecondNeighbor(int i) { return v[i][1]; }
	int NumberOfQueries() { return m; }
	int QueryFrom(int i) { return w[i][0]; }
	int QueryTo(int i) { return w[i][1]; }
#endif

int students_[25100100];
int * const students = students_ + 2;
int nstuds = 0;

void push(bool really, int x) {
	students[nstuds] = x;
	nstuds += really;
}

int main() {
	#if TEST
		prepare();
	#endif
	
	int nodes = NumberOfNodes();
	int mynode = MyNodeId();
	bool pierwszy = mynode == 0;
	int n = NumberOfStudents();
	
	bool dodatni = mynode % 2 == 0;
	int znak;
	int ludzi;
	int kompow;
	if (dodatni) {
		znak = 1;
		ludzi = n / 2;
		kompow = (nodes + 1) / 2;
	} else {
		znak = -1;
		ludzi = n / 2 + (n & 1);
		kompow = (nodes) / 2;
	}
	int wezel = mynode / 2;
	int wezme = ludzi / kompow;
	if (wezme * kompow < ludzi) ++wezme;
	int sidestartno = wezel * wezme;
	if (sidestartno >= ludzi) return 0;
	bool ostatni = false;
	if (sidestartno + wezme >= ludzi) {
		wezme = ludzi - sidestartno;
		ostatni = true;
	}
	int startno = dodatni ? sidestartno : -1 -sidestartno;
	// ~ print startno, wezme;
	
	// --------------------------------------------------------------------
	
	if (pierwszy) {
		students[0] = 1;
		students[-1] = SecondNeighbor(1);
		nstuds = 1;
		
		PutInt(1, FirstNeighbor(1));
		PutInt(1, 1);
		Send(1);
	} else {
		int from = max(0, mynode - 2);
		Receive(from);
		students[-2] = GetInt(from);
		students[-1] = GetInt(from);
	}
	
	while (nstuds < wezme) {
		{
			int next = FirstNeighbor(students[nstuds-1]);
			push(next != students[nstuds-2], next);
		}
		if (nstuds == wezme) break;
		{
			int next = SecondNeighbor(students[nstuds-1]);
			push(next != students[nstuds-2], next);
		}
	}
	
	if (!ostatni) {
		PutInt(mynode + 2, students[nstuds-2]);
		PutInt(mynode + 2, students[nstuds-1]);
		Send(mynode + 2);
	}
	
	// --------------------------------------------------------------------
	
	// ~ { Print p; p, "mam"; for (int i : range(nstuds)) p, students[i]; }
	
	map<int, vector<pair<int, int>>> gdzie;
	int m = NumberOfQueries();
	for (int i : inclusive(1, m)) {
		gdzie[QueryFrom(i)].push_back({i, 0});
		gdzie[QueryTo(i)].push_back({i, 1});
	}
	
	int no = startno;
	for (int i : range(nstuds)) {
		if (gdzie.count(students[i])) {
			for (auto p : gdzie[students[i]]) {
				// if pierwszy?
				PutInt(0, p.first);
				PutInt(0, p.second);
				PutInt(0, no);
				Send(0);
			}
		}
		no += znak;
	}
	
	if (pierwszy) {
		int waitfor = 2 * m;
		vector<pair<int, int>> nos(m + 1);
		while (waitfor) {
			int sender = Receive(-1);
			int i = GetInt(sender);
			int cyk = GetInt(sender);
			int val = GetInt(sender);
			if (cyk == 0) {
				nos[i].first = val;
			} else {
				nos[i].second = val;
			}
			waitfor--;
		}
	
		for (int i : inclusive(1, m)) {
			int a = nos[i].first;
			int b = nos[i].second;
			if (b < a) swap(a, b);
			// ~ print "niekoniecznie", b - a;
			print min(b - a, a + n - b);
		}
	}
	
	return 0;
}