Write a function interleave that accepts two strings. It should return a new string containing the $2$ strings interwoven or zipped together. For example:

interleave$(\text{'}$hi$\text{'},\text{'}$ha$\text{'})$ # 'hhia'

interleave$(\text{'}$aaa$\text{'},\text{'}$zzz$\text{'})$ # 'azazaz'

interleave$(\text{'}$lzr$\text{'},$'iad'$)$ # 'lizard' Print.