Tear of Maar Level 0

Gridmapper:Tear of Maar Level 0 : Comet Surface

(7,4)ggggggggg g
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     svvvv      gffgg
     fundefined fundefined      wwvgB wwvgB
     fB fB      gB gB
     fB fB    gB gB fB fB gB gB
      gB gB   gB  gB gB  gB gB
       gB gB gB gB  gB gB
       gB gB gB   gB gB(20,0,0)