72 h visa after living 4 months in Beijing

hi,

I'm a spanish student, and now I'm living in Beijing with a short term student X type (only one entrance allowed). At the end of the corurse I want to do a trip to Japan and come back to Beijing for less than 72h to pick up my things and take the flight back to Spain (I already have the ticket fom Beijing to Madrid). I am elegible for the 72h free transit after having lived in China?

Thanks a lot,