C1111233133313231133133313331333133313231232313331333132212312111   >>    C111123313331323113313331333133313331323123231333133313221231211   <<    C1111233133313231133133313331333133313231232313331333132212312113   >>      C1111233133313231133133313331333133313231232313331333132212312112   >>