C22121333132313311211113313331333132233131133133313231333131213121   >>    C2212133313231331121111331333133313223313113313331323133313121312   <<    C22121333132313311211113313331333132233131133133313231333131213123   >>      C22121333132313311211113313331333132233131133133313231333131213122   >>