import random

data = [-50,-21,13,171,14,-42,-58,109,4,7,-23,-44,-98,-121,101,
33,87,-121,-40,-65,43,54,-45,-12,-12,38,25,3,7,8]
subdata = [-1]

while sum(subdata) != 0:
   subdata = random.sample(data, 9)

print subdata