Jessica\textquotesingle{} s and Judy\textquotesingle{} s desks are adjacent to each other in a column. Jessica sits in front of Judy. Given that there are $$5$$ desks in front of Jessica\textquotesingle{} s and $$7$$ behind Judy\textquotesingle{} s, how many desks are there in the column? 
Overseas Competition->Knowledge Point->Word Problem Modules->Problems Involving Queuing->Finding the Total Number According to the Position of Two Characters in a Line