#include <bits/stdc++.h>
#include <sys/time.h>
#pragma GCC optimize "O3,omit-frame-pointer,inline"
#define ALL(v) (v).begin(), (v).end()
#define OVERLOAD4(_1, _2, _3, _4, name, ...) name
#define REP1(n) for(int i=0;i<n;i++)
#define REP2(i, n) for(int i=0;i<n;i++)
#define REP3(i, a, b) for(int i=a;i<b;i++)
#define REP4(i, a, b, c) for(int i=a;i<b;i+=c)
#define REP(...) OVERLOAD4(__VA_ARGS__, REP4, REP3, REP2, REP1)(__VA_ARGS__)
#define ll long long
using namespace std;
//typedef vector<unsigned int>vec;
//typedef vector<ll>vec;
//typedef vector<vec> mat;
typedef pair<int, int> P;
typedef pair<ll,ll> LP;
//const int dx[8] = {1, 0, -1, 0, 1, -1, -1, 1};
//const int dy[8] = {0, 1, 0, -1, 1, 1, -1, -1};
const int INF = 1000000000;
const ll LINF = 1000000000000000000;//1e18
const ll  MOD = 1000000007;
const double PI = acos(-1.0);
// const double PI = 2 * acos(0);
constexpr double EPS = 1e-10;

template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; }
/*  ----------------------- DEBUG FUNCTION ---------------------------- */
#define DUMPOUT cerr
#define DEBUG_ 1
void dump_function() { DUMPOUT << ' '; }
void dump_function(bool a) { DUMPOUT << a; }
void dump_function(int a) { DUMPOUT << a; }
void dump_function(long long a) { DUMPOUT << a; }
void dump_function(char a) { DUMPOUT << a; }
void dump_function(string &a) { DUMPOUT << a; }
void dump_function(double a) { DUMPOUT << a; }
template <class T> void dump_function(const vector<T> &);
template <class T, size_t size> void dump_function(const array<T, size> &);
template <class T, class L> void dump_function(const pair<T, L> &p);
template <class T, size_t size> void dump_function(const T (&)[size]);
template <class T> void dump_function(const vector<T> &a) {
    if(a.empty()) return;
    dump_function(a[0]);
    for(auto i = a.begin(); ++i != a.end();) {
        DUMPOUT << " ";
        dump_function(*i);
    }
    DUMPOUT << endl;
}
template <class T> void dump_function(const deque<T> &a) {
    if(a.empty()) return;
    dump_function(a[0]);
    for(auto i = a.begin(); ++i != a.end();) {
        DUMPOUT << " ";
        dump_function(*i);
    }
}
template <class T, size_t size> void dump_function(const array<T, size> &a) {
    dump_function(a[0]);
    for(auto i = a.begin(); ++i != a.end();) {
        DUMPOUT << " ";
        dump_function(*i);
    }
}
template <class T, class L> void dump_function(const pair<T, L> &p) {
    DUMPOUT << '(';
    dump_function(p.first);
    DUMPOUT << ",";
    dump_function(p.second);
    DUMPOUT << ')';
}
template <class T> void dump_function(set<T> &x) {
    for(auto e : x) dump_function(e), DUMPOUT << " ";
    DUMPOUT << endl;
}
template <class T> void dump_function(multiset<T> &x) {
    for(auto e : x) dump_function(e), DUMPOUT << " ";
    DUMPOUT << endl;
}
template <class T, size_t size> void dump_function(const T (&a)[size]) {
    dump_function(a[0]);
    for(auto i = a; ++i != end(a);) {
        DUMPOUT << " ";
        dump_function(*i);
    }
}
template <class T> void dump_function(const T &a) { DUMPOUT << a; }
int dump_out() {
    DUMPOUT << '\n';
    return 0;
}
template <class T> int dump_out(const T &t) {
    dump_function(t);
    DUMPOUT << '\n';
    return 0;
}
template <class Head, class... Tail> int dump_out(const Head &head, const Tail &... tail) {
    dump_function(head);
    DUMPOUT << ' ';
    dump_out(tail...);
    return 0;
}
 
#ifdef DEBUG_
#define dump(x)                                                                                                                                               \
    DUMPOUT << #x << ": ";                                                                                                                                        \
    dump_function(x);                                                                                                                                                  \
    DUMPOUT << endl;
void dumps() {}
template <class T> void dumps(const T &t) {
    dump_function(t);
    DUMPOUT << " ";
}
template <class Head, class... Tail> void dumps(const Head &head, const Tail &... tail) {
    dump_function(head);
    DUMPOUT << ' ';
    dump_out(tail...);
}
#else
#define dump(x)
template <class... T> void dumps(const T &...) {}
#endif
/*  ----------------------- DEBUG FUNCTION ---------------------------- */

constexpr ll CYCLES_PER_SEC = 2800000000;
constexpr double TL = 990;
double get_ms() { struct timeval t; gettimeofday(&t, NULL); return (double)t.tv_sec * 1000 + (double)t.tv_usec / 1000; }

uint32_t XorShift(void) {
	static uint32_t x = 123456789;
	static uint32_t y = 362436069;
	static uint32_t z = 521288629;
	static uint32_t w = 88675123;
	uint32_t t;

	t = x ^ (x << 11);
	x = y; y = z; z = w;
	return w = (w ^ (w >> 19)) ^ (t ^ (t >> 8));
}

double Prob(void){
	double ret = (double)XorShift() / UINT_MAX;
	return ret;
}

struct RNG {
    unsigned int MT[624];
    int index;
    RNG(int seed = 1) {init(seed);}
    void init(int seed = 1) {MT[0] = seed; REP(i, 1, 624) MT[i] = (1812433253UL * (MT[i-1] ^ (MT[i-1] >> 30)) + i); index = 0; }
    void generate() {
        const unsigned int MULT[] = {0, 2567483615UL};
        REP(i, 227) {unsigned int y = (MT[i] & 0x8000000UL) + (MT[i+1] & 0x7FFFFFFFUL); MT[i] = MT[i+397] ^ (y >> 1); MT[i] ^= MULT[y&1]; }
        REP(i, 227, 623) {unsigned int y = (MT[i] & 0x8000000UL) + (MT[i+1] & 0x7FFFFFFFUL); MT[i] = MT[i-227] ^ (y >> 1); MT[i] ^= MULT[y&1]; }
        unsigned int y = (MT[623] & 0x8000000UL) + (MT[0] & 0x7FFFFFFFUL); MT[623] = MT[623-227] ^ (y >> 1); MT[623] ^= MULT[y&1];
    }
    unsigned int rand() { if (index == 0) generate(); unsigned int y = MT[index]; y ^= y >> 11; y ^= y << 7  & 2636928640UL; y ^= y << 15 & 4022730752UL; y ^= y >> 18; index = index == 623 ? 0 : index + 1; return y;}
    inline __attribute__ ((always_inline)) int next() {return rand(); }
    inline __attribute__ ((always_inline)) int next(int x) {return rand() % x; }
    inline __attribute__ ((always_inline)) int next(int a, int b) {return a + (rand() % (b - a)); }
    inline __attribute__ ((always_inline)) double next_double() {return (rand() + 0.5) * (1.0 / 4294967296.0); }
    inline __attribute__ ((always_inline)) double next_double(double a, double b) {return a + next_double() * (b - a); }
};

static RNG rng;
const int N = 100;
const int M = 8;
vector<int> a(N), b(N);
vector<int> c(M), d(M);
namespace yukicoder_score_contest2{

    void init(){
    }

    void input(){
        int _N, _M;
        cin >> _N >> _M;
        REP(i,N) cin >> a[i] >> b[i];
    }

    void output() {
        REP(i,M) cout << c[i] << " " << d[i] << "\n";
        cout << N+1 << endl;
        REP(i,N) cout << "1 " << i + 1 << "\n";
        cout << "1 1" << endl;
    }

    void main(){
        init();
        input();
        output();
    }
}

int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);
    yukicoder_score_contest2::main();
}