#include "light.h"
#include <bits/stdc++.h>
using namespace std;
long long slaves;
void prepare(){
	slaves = 1;
}
pair<long long, vector<long long>> join( long long p ) {
	slaves += p;
    vector<long long> light;
    for ( int l = 0; (1LL << l) <= slaves; l++ )
        light.push_back( slaves - (1 << l) + 1 );
    reverse( light.begin(), light.end() );
    return { p, light };
}
pair<long long, vector<long long>> leave( long long p ) {
    slaves -= p;
    vector<long long> light;
    for ( int l = 0; (1LL << l) <= slaves; l++ )
        light.push_back( slaves - (1 << l) + 1 );
    reverse( light.begin(), light.end() );
    return { p, light };
}
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