Article 50: The final enforceable sentences of deprivation of liberty which have not been merged are served in their order of severity. The execution, in progress, of a custodial sentence is not legally suspended by the intervention of another custodial sentence or security measure that has become final and enforceable. Any sentence involving deprivation of liberty, pronounced for an offence committed prior to or during the periods of execution of the security confinement, shall be executed after this confinement. Article 51: Sentences involving deprivation of liberty may be served under the regime of semiliberty or release on parole. Section 2: Fine Article 52: The judge sets the amount of the fine taking into account the material situation of the convicted person, his resources and family responsibilities, his profession, his age and health condition. The fine is paid to the Public Treasury. Article 53: All convicts of the same felony or misdemeanor are jointly held for the payment of: 1°) restitution; 2°) damages; 3°) fines 4°) fees. The judge may exceptionally and by reasoned decision exempt all or some of the convicted persons from joint liability for fines. Article 54: In the event of insufficiency of the convicted person's assets, restitution and damages take precedence over fines and fees. Section 3: Community service Article 55: When a misdemeanor or a petty offence is punishable by imprisonment for a term not exceeding three years, the court may decide, in lieu of imprisonment, that the convicted person perform unpaid community service for a period of twenty to two hundred and eighty hours for the benefit of either a public entity, a private entity entrusted with a public service mission, or an association authorized to carry out community service. In the event of non-performance of community service, the convicted person shall serve the sentence provided for in the judgment of conviction.