ont idea taken from aCk -
-------- ,Sa, ---------- Sa, -------- ,Sa, ------------------- +
,aS , ,aS , ,aS , ,aS
, , , ,aaaaaaaaaa
aaaaaaaa,
,aaaaaa
aaggggggggaaggggggggaggggggggaaggggggggaggggggggaaggggggggaggggggggaaggggggggaa
r u s t . c o m i n g . s o o n