#include using namespace std; using ll = long long; using P = pair; bool mat[32][32]; int main() { cin.tie(0); ios::sync_with_stdio(false); int K; cin >> K; for (int i = 0; i < 31; i++) { for (int j = i + 1; j < 31; j++) { mat[i][j] = true; } } for (int i = 0; i < 30; i++) { if (K & (1 << i)) { mat[i + 1][31] = true; } } int n = 32; vector

e; for (int i = 0; i < n; i++) { for (int j = i + 1; j < n; j++) { if (mat[i][j]) e.emplace_back(i + 1, j + 1); } } int m = e.size(); cout << n << " " << m << endl; for (auto& p : e) { cout << p.first << " " << p.second << endl; } return 0; }