_____max levels____last level upgrade cost

chair #1___5600___1,09E+298
chair #2___5500___9,83E+297
chair #3___5400___6,09E+297
chair #4___5300___2,93E+297
chair #5___5200___9,55E+296
chair #6___5150___1,51E+299
chair #7___5050___5,16E+298
chair #8___5000___2,93E+297
chair #9___4950___2,93E+299
chair #10__4850___3,60E+298
chair #11__4750___1,25E+276
_________56750