C11112331312111112111133132313331333133313232213331322231311321   >>    C1111233131211111211113313231333133313331323221333132223131132   <<    C11112331312111112111133132313331333133313232213331322231311323   >>      C11112331312111112111133132313331333133313232213331322231311322   >>