MapInfo [
  nnodes 2
  map [ alignment "s1" machid 1 ]
  map [ alignment "s2" machid 0 ]
  map [ alignment "s3" machid 1 ]
  map [ alignment "s4" machid 0 ]
  map [ alignment "s5" machid 1 ]
  map [ alignment "s6" machid 0 ]
  map [ alignment "s7" machid 1 ]
  map [ alignment "s8" machid 0 ]
  map [ alignment "s9" machid 1 ]
  map [ alignment "s10" machid 0 ]
  map [ alignment "s11" machid 1 ]
  map [ alignment "s12" machid 0 ]
  map [ alignment "s13" machid 1 ]
  map [ alignment "s14" machid 0 ]
  map [ alignment "s15" machid 1 ]
  map [ alignment "s16" machid 0 ]
  map [ alignment "s17" machid 1 ]
  map [ alignment "s18" machid 0 ]
  map [ alignment "s19" machid 1 ]
]