C1111233131211111211113313331333133313331312331333133112312331333132223131   >>    C111123313121111121111331333133313331333131233133313311231233133313222313   <<    C1111233131211111211113313331333133313331312331333133112312331333132223133   >>      C1111233131211111211113313331333133313331312331333133112312331333132223132   >>