C1111233131211111211113313331333133313231323331333132323323132311311   >>    C111123313121111121111331333133313331323132333133313232332313231131   <<    C1111233131211111211113313331333133313231323331333132323323132311313   >>      C1111233131211111211113313331333133313231323331333132323323132311312   >>