// sum array

ax[10]

sum()
  i = 0
  s = 0
  while( ax[i] != 0 )
    s = s + ax[i]
    i = i + 1
  return s

main()
  ax[0] = 11
  ax[1] = 22
  ax[2] = 33
  ax[3] = 44
  ax[4] = 0
  print(sum())