C1111233133313231133133313331333133313231331133132313331333131323321311   >>    C111123313331323113313331333133313331323133113313231333133313132332131   <<    C1111233133313231133133313331333133313231331133132313331333131323321313   >>      C1111233133313231133133313331333133313231331133132313331333131323321312   >>