+++++ +++++             initialize counter (cell #0) to 10
[                       use loop to set the next four cells to 70/100/30/10
> +++++ ++              add  7 to cell #1
> +++++ +++++           add 10 to cell #2 
> +++                   add  3 to cell #3
> +                     add  1 to cell #4
<<<< -                  decrement counter (cell #0)
]

H :  > ++ .
e :  > + .
l :  +++++ ++ . .
l :  +++ .
o :  > ++ .
  :  << +++++ +++++ +++++ . 
W :  > .
o :  +++ .
r :  ----- - .
l :  ----- --- .
d :  > + .
\n: > .