#include <iostream>
#include <set>
using namespace std;

  double Initial_Angle_Guess(int runnum)
  {
    static const std::set<int> positives{14,15,16,17,66,67,90,91,117,118,
        158,159,165,229,230,248,249,273,274,290,291,293,297,
        318,319,320,415,416,417,501,503};
    static const std::set<int> negatives{18,19,20,21,22,23,119,120,162,166,
        167,250,251,275,276,292,295,298,299,321,322,323,418,419,502};
    double result = 0;
    if(positives.count(runnum)) result = 22.0;
    if(negatives.count(runnum)) result = -22.0;
    return result;
  }

int main() {
	// your code goes here
	cout << Initial_Angle_Guess(159) << endl;
	return 0;
}