C111113331333132322331333133313331333132313223211113313223323221   >>    C11111333133313232233133313331333133313231322321111331322332322   <<    C111113331333132322331333133313331333132313223211113313223323223   >>      C111113331333132322331333133313331333132313223211113313223323222   >>