C13223313311212111133133313331323133313331323131133133313231333133112233221   >>    C1322331331121211113313331333132313331333132313113313331323133313311223322   <<    C13223313311212111133133313331323133313331323131133133313231333133112233223   >>      C13223313311212111133133313331323133313331323131133133313231333133112233222   >>