C1111233133313231133133313331333133313231232313331333132223131221   >>    C111123313331323113313331333133313331323123231333133313222313122   <<    C1111233133313231133133313331333133313231232313331333132223131223   >>      C1111233133313231133133313331333133313231232313331333132223131222   >>