Uncertainty whether $\{a^i b^j c^k \mid i+j \le k\}$ is context-free or not I'm having trouble with this particular language: $$\{a^i b^j c^k \mid i+j \le k\}$$

If it's not context-free, I don't know how to correctly apply the Pumping Lemma for CFLs; if it is context-free, I don't know how to create a context-free grammar that generates this language.

Which one applies? Can you help me out?
Hint. $k = i + j + ?$, so the language is $a^ib^jc^?c^jc^i$.