MASS OF CUBE
 8 6 2.0
    1            0.0       0.0       0.0
    2            1.0       0.0       0.0
    3            1.0       1.0       0.0
    4            0.0       1.0       0.0
    5            0.0       0.0       1.0
    6            1.0       0.0       1.0
    7            1.0       1.0       1.0
1   8            0.0       1.0       1.0
    1    1    4    3    2    1
    2    2    3    7    6    2
    3    5    6    7    8    5
    4    1    5    8    4    1
    5    1    2    6    5    1
1   6    3    4    8    7    3
END