Question $1$: Write a function catit$1$ that will receive one input argument, which is a cell array. If the cell array contains only strings, it will return two strings: one string is all the strings from the cell array concatenated together, the other string is combining the last letters of each word in the cell array. Otherwise, it will return two empty strings. $(35$ Points$)$

$>>$fishes$=\{$tuna$,$pollack$,$salmon$,$cod$,$swai$\}$

$>>[$str$1,$str$2]=$catit$1($fishes$)$

OUTPUT

str$1=$tunapollacksalmoncodswai$$

str$2=$akndi$$