I have over 3000 folders, each folders have a geodatabase and each geodatabase consist of a layer name called "lot".

I want to merge the all the "lot" layers into one layer shapefile, my gis knowledge is very limited and would like to ask some insights or tools i can use in this situation? I am thinking of these tools, and thinking how to plug each tool inside modelbuilder :

Iterate Feature classes (find the name of "lot")?,Parse path,Rename