C11112331312111112111133132313331333133313232212111113231333131132321   >>    C1111233131211111211113313231333133313331323221211111323133313113232   <<    C11112331312111112111133132313331333133313232212111113231333131132323   >>      C11112331312111112111133132313331333133313232212111113231333131132322   >>