++++++++++ counter := 10
[ repeat 10 times
>+++++++ counter *: 1 7
>++++++++++ counter *: 1 7 10
>+++ counter *: 1 7 10 3
>+ counter *: 1 7 10 3 1
<<<<- decrement counter
] 0 70 100 30 10
>++. 70 add 2 = H
>+. 100 add 1 = e
+++++++.. 101 add 7 = ll
+++. 108 add 3 = o
>++. 30 add 2 = SPC
# 0 72 111 32
# ^
<<+++++++++++++++. 72 add 15 = W
>. 111 = o
+++. 111 add 3 = r
------. 114 sub 6 = l
--------. 108 sub 8 = d
>+. 32 add 1 = !
# 0 87 100 33
# ^
>. 0 = NUL