C11111333133313232233133313331333133313231333133313113313331211112231121   >>    C1111133313331323223313331333133313331323133313331311331333121111223112   <<    C11111333133313232233133313331333133313231333133313113313331211112231123   >>      C11111333133313232233133313331333133313231333133313113313331211112231122   >>