
...where you have dishes in COLUMN A
and other dishes in COLUMN B...
The Big Bang Theory Season 4, Episode 20

You mark "10" under this COLUMN
Breaking Bad Season 5, Episode 13

and you mark it
under the appropriate COLUMN.
Breaking Bad Season 5, Episode 13

wrote a COLUMN suggesting
Breaking Bad Season 5, Episode 15

and then you subtract 10
from the stock COLUMN.
Breaking Bad Season 5, Episode 13