#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;
}
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