could not detect comment line no, generated Ruby from Blocks.

[takaokouji]

for example, commented each move(10 * (10 - 5)) nodes.

now, generate below.

# move ( ) steps
# *
# -
move(10 * (10 - 5))

in the future, below is for example.

# move () steps
# ≫ *
# ≫≫ -
move(10 * (10 - 5))

It's one of idea.

[takaokouji]

Best solution is here, I think.

# move ( ) steps
move(
  # *
  10 * 
  # -
  (10 - 5)
)