#include <iostream>

using namespace std;

int the_forumla(int seats, int area);

int main(){
	int seats, area = 0, final = 0;
	cout << "How many steats (positive number lower then 2049): ";
	cin >> seats;

	if(seats == 1){ area = 1; }
	else if(seats >=2 && seats <= 3){ area = 2; }
	else if(seats >= 4 && seats <= 7){ area = 4; }
	else if(seats >= 8 && seats <= 15){ area = 8; }
	else if(seats >= 16 && seats <= 31){ area = 16; }
	else if(seats >= 32 && seats <= 63){ area = 32; }
	else if(seats >= 64 && seats <= 127){ area = 64; }
	else if(seats >= 128 && seats <= 255){ area = 128; }
	else if(seats >= 256 && seats <= 511){ area = 256; } 
	else if(seats >= 512 && seats <= 1023){ area = 512; }
	else if(seats >= 1024 && seats <= 2048){ area = 1024; }
	else{ cout << "Please enter a positive number lower then 2049\n"; }
	final = the_forumla(seats,area);
	cout << " Lucky seat #" << final << " gets her.\n";

	return 0;
}

int the_forumla(int seats, int area){
	int tmp = 0, mod = 0, final = 0;
	tmp = seats - area;
	cout << "\t TMP = " << tmp << endl;
	mod = tmp - (area-1);
	cout << "\t MOD = " << mod << endl;
	final = seats + mod;
	cout << "\t FINAL = " << final << endl;
	return final;
}