Q8. Write regular definitions for the following languages:

f) All strings of a's and 6's with an even number of a's and an odd number of 6's.

g) The set of Chess moves, in the informal notation, such as p-k4 or kbpxqn.

h) All strings of a's and 6's that do not contain the substring a66.

i) All strings of a's and 6's that do not contain the subsequence a66.