positive and negative sums

4 3 -8 4 3 -8 4 3 -8 4 3 -8 4 3 -8 4 3 -8 4 3


Here you see 20 whole numbers which added together gives a positive result. Each subgroup of 3 numbers added together gives a negative result.

Is such a row of numbers possible, with every number being different?


sjig