Something is amiss in the outpost....

[Nightmon]

To summarize _ mean that a value is at the right place. 1 mean that the value is at the wrong place and 0 mean its the wrong value.
Example if I type aaaa and the result is 0000 there is no a in the right sequence. Tho if its _000 it mean there is one.

Also dont fear "wasting" them you can always found New one around the page ^^