C1111233133313231133133313331333133313231232313331333132213232233121   >>    C111123313331323113313331333133313331323123231333133313221323223312   <<    C1111233133313231133133313331333133313231232313331333132213232233123   >>      C1111233133313231133133313331333133313231232313331333132213232233122   >>