C111113331333132322331333133313331311331323133313221211111221111   >>    C11111333133313232233133313331333131133132313331322121111122111   <<    C111113331333132322331333133313331311331323133313221211111221113   >>      C111113331333132322331333133313331311331323133313221211111221112   >>