Given a list of integers, compute the sum of the nonzero ones.
In the event the list contains no nonzero integers, the desired sum is zero.
In tests worth 5 marks, all are nonzero.
The first line contains a single integer .
The next lines each contain a single integer, , representing the th integer in the list.
On a single line, output the sum of the nonzero integers.
10 0 0 0 0 0 0 0 0 0 0
2 1 -2