C13223313311212111133133313331323133313331323131133133313231333133311213123121   >>    C1322331331121211113313331333132313331333132313113313331323133313331121312312   <<    C13223313311212111133133313331323133313331323131133133313231333133311213123123   >>      C13223313311212111133133313331323133313331323131133133313231333133311213123122   >>