You are given a list, containing integer numbers. Write a function that returns the sum of the numbers in

the list, returning $0$ for an empty list. Except the number $13$ is very unlucky, so it does not count and

numbers that come after a $13$ also do not count.

Examples:

If you were given list of $[1,2,2,1],$ call sum$13($mylist$)$ should yield $6$;

If you were given list of $[1,2,13,1,5,-1,0,-12]$ call sum$13($mylist$)$ should yield $3.$

Problem $12.$

Write a loop that iterates over the string and prints every other letter starting from the first$($first$,$

third, and so on$).$

So$,$ if given a string Connecticut, the code will print Cnetct