C1111233131211111211113313331333131133132321233133313223313233231333131   >>    C111123313121111121111331333133313113313232123313331322331323323133313   <<    C1111233131211111211113313331333131133132321233133313223313233231333133   >>      C1111233131211111211113313331333131133132321233133313223313233231333132   >>