I oversimplified this, sorry. You have to pad the plus code so that the segment to the left of the plus has enough characters, and there are a couple other rule

I oversimplified this, sorry. You have to pad the plus code so that the segment to the left of the plus has enough characters, and there are a couple other rules: https://en.wikipedia.org/wiki/Open_Location_Code https://en.wikipedia.org/wiki/Open_Location_Code