0 400   0   H1
 0 400   0   ==
 0 400   0   
 0 400   0   H2
 0 400   0   --
 0 400   0   
 0 400   0   # H1
 0 400   0   
 0 400   0   ## H2
 0 400   0   
 0 400   0   H1
 0 400   0   ==
 0 400   0   H2
 0 400   0   --
 0 400   0   # H1
 0 400   0   ## H2
 0 400   0   ### H3
 0 400   0   #### H4
 0 400   0   ##### H5
 0 400   0   ###### H6
 0 400   0