cout << "A : " << A[0] << ' ' << A[1] << ' ' << A[2] << endl;
cout << "B : " << B[0] << ' ' << B[1] << ' ' << B[2] << endl;
cout << "N : " << normale[0] << ' ' << normale[1] << ' ' << normale[2] << endl;
cout << "A : " << A[0] << ' ' << A[1] << ' ' << A[2] << endl;
cout << "B : " << B[0] << ' ' << B[1] << ' ' << B[2] << endl;
cout << "N : " << normale[0] << ' ' << normale[1] << ' ' << normale[2] << endl;