Small Representations of $2016$
Solution 1:
With binomial coefficients ($8$ symbols): $$2016={64 \choose 2}={2^{2^2+2} \choose 2}$$ It can be expected that many olympiad problems in $2016$ will use this combinatorial property.
P.S. Special thanks to Alex Fok for minus one symbol in $64$.
Solution 2:
$$\sum_3^{3\times3}n^3$$ is 7 points, right?