CSS(54,1)
Sparse6:
:ul_?GI?BAO?gYAFCQ_GeUAFR?O}YBCOq?e[CGp@xI[DHp`HQiECQqo]mNArB?]SKKq`XikLGrR@IqOHUa@EiUHtrHQsRITQxb