C1111133313331333121121133133313331333132313331333132313112123231   >>    C111113331333133312112113313331333133313231333133313231311212323   <<    C1111133313331333121121133133313331333132313331333132313112123233   >>      C1111133313331333121121133133313331333132313331333132313112123232   >>