C11111333133313232233133313331333132313331323133313331312111133231121   >>    C1111133313331323223313331333133313231333132313331333131211113323112   <<    C11111333133313232233133313331333132313331323133313331312111133231123   >>      C11111333133313232233133313331333132313331323133313331312111133231122   >>