C11111333133313232233133313331333133313231312111133132233231311121   >>    C1111133313331323223313331333133313331323131211113313223323131112   <<    C11111333133313232233133313331333133313231312111133132233231311123   >>      C11111333133313232233133313331333133313231312111133132233231311122   >>