C111113331333132322331333133313331311331323133112121111113313233123331   >>    C11111333133313232233133313331333131133132313311212111111331323312333   <<    C111113331333132322331333133313331311331323133112121111113313233123333   >>      C111113331333132322331333133313331311331323133112121111113313233123332   >>