C111113331333132322331333133313331333132313131312111133131133121121   >>    C11111333133313232233133313331333133313231313131211113313113312112   <<    C111113331333132322331333133313331333132313131312111133131133121123   >>      C111113331333132322331333133313331333132313131312111133131133121122   >>