C1111233131211111211113313331333133313232212111133132233322332333131   >>    C111123313121111121111331333133313331323221211113313223332233233313   <<    C1111233131211111211113313331333133313232212111133132233322332333133   >>      C1111233131211111211113313331333133313232212111133132233322332333132   >>