4
first line is number of atoms, second line is text then following lines xyz coordiantes
 B    0.00000000    0.00000000    0.00000000
 H    0.00000000    1.19452732    0.00000000
 H    1.03449101   -0.59726366    0.00000000
 H   -1.03449101   -0.59726366    0.00000000

