The Spirit-Totem of Ulgrath Fells

High on Ulgrath Fells, the clans keep a spirit-totem of carved figures. Each new figure is set on top of the last, so the totem grows upward, one carving at a time. Before the winter rite, the Shamans' Circle posts a bounty for a reading of the uppermost figures, spoken from the top down.

Write readTotem(carvings, k).

• carvings is a list of strings. Each string names one figure, listed from the bottom of the totem (first element) to the top (last element).
• k is a non-negative integer.

Return a list of strings with the top k figures, ordered from the topmost figure first downward.

• If k is greater than or equal to the number of figures, return every figure, still topmost first.
• If k is 0, or carvings is empty, return an empty list.