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

vector<vector<double> > a{ { -0.066988739415,-0.872755765852,-0.483538914632 },
    { 0.492728466075,-0.450346958020, 0.744584633283 },
    { -0.867600811151,-0.188374601723, 0.460199784784 } };

int main() {
	
	return 0;
}