C1111233131211111211113313331333133313331312331333131211111211111333132131   >>    C111123313121111121111331333133313331333131233133313121111121111133313213   <<    C1111233131211111211113313331333133313331312331333131211111211111333132133   >>      C1111233131211111211113313331333133313331312331333131211111211111333132132   >>