C13223313311212111133133313331333133313232233133313121111331333132313231232321   >>    C1322331331121211113313331333133313331323223313331312111133133313231323123232   <<    C13223313311212111133133313331333133313232233133313121111331333132313231232323   >>      C13223313311212111133133313331333133313232233133313121111331333132313231232322   >>