C11111333133313232233133313331333133112111112113313232213331322123313231311   >>    C1111133313331323223313331333133313311211111211331323221333132212331323131   <<    C11111333133313232233133313331333133112111112113313232213331322123313231313   >>      C11111333133313232233133313331333133112111112113313232213331322123313231312   >>