#include "light.h" #include<bits/stdc++.h> using namespace std; #define int long long #define inf (int)2e18 #define nl '\n' int n = 1; void prepare(){ } pair<int, vector<int>> join(int x){ n += x; vector<int> v; for(int i = 1; i < n; i++) if(i % 5 == 1) v.push_back(i); v.push_back(n); return {5 * x, v}; } pair<int, vector<int>> leave(int x){ n -= x; vector<int> v; for(int i = 1; i < n; i++) if(i % 5 == 1) v.push_back(i); v.push_back(n); return {5 * x, v}; }