Agrabah never sleeps peacefully! A robbery has taken place at Agrabah's palace the previous night and one of the most precious treasures, a rare diamond is missing. Information received from the sources has pointed out that Essos, an allied nation is behind this robbery. Aladdin and Genie left for Essos as soon as they heard the news. On reaching there they find out that the diamond is guarded by a two-level cage, each having 9 sections. The guards placed there have to occupy 16 sections, 8 on the upper level and 8 on the lower. (The two central sections are set aside for storing weapons). There are 4 conditions for placing guards: 1. All 16 sections must be occupied. 2. No section can hold more than 3 guards. 3. Each of the four outer sides (total of both levels) must hold 11 guards. 4. The whole upper level must hold twice as many guards as the whole lower level. Although the cage facility received 3 fewer guards than expected. The facility placed the guards in conformity with these four conditions. The Aladdin asked Genie to bring back the diamond but in order to do so, Genie needs some information. He needs to find out how many guards were expected?