C11111333133313232233133313331333133313231312111133132231333311   >>    C1111133313331323223313331333133313331323131211113313223133331   <<    C11111333133313232233133313331333133313231312111133132231333313   >>      C11111333133313232233133313331333133313231312111133132231333312   >>