C11111333133313232233133313331333133313221333133313232332313221   >>    C1111133313331323223313331333133313331322133313331323233231322   <<    C11111333133313232233133313331333133313221333133313232332313223   >>      C11111333133313232233133313331333133313221333133313232332313222   >>