English: A distinguishing coloring of a ring of six keys. Using two colors (here, red and uncolored) for the handles of the keys allows each key to be uniquely distinguished from the others by its position in the coloring.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.