1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
#include<bits/stdc++.h>

using namespace std;

int main(){
    int k; cin>>k;
    int n = 94;
    vector<vector<int>> g(n+1);
    for(int i = 1; i <= 15; i++){
        g[i].push_back(2*i);
        g[i].push_back(2*i + 1);
    }
    for(int i = 32; i <= 93; i++){
        if(i%2 == 0){
            g[i].push_back(i+1);
            g[i].push_back(i+2);
        }else{
            g[i].push_back(i+1);
        }
    }
    for(int i = 0; 1<<i <= k; i++){
        if(k &(1<<i)){
            g[16 + i/2].push_back(94 - 2*i);
        }
    }
    cout<<n<<"\n";
    for(int i = 1; i <= n; i++){
        for(int j = 0; j < 2; j++){
            if(j < g[i].size()){
                cout<<g[i][j]<<" ";
            }else{
                cout<<"-1 ";
            }
        }
        cout<<"\n";
    }
}