View solutions of several random people

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sanga_zh (Python) Aerun Wolfsong (Java) XUHAOTONG (C/C++) Abdallah_Tousi (Java) Charul Bhanawat (Java) RealGlag (C/C++) LoveFruit (Python) apetrov_petrov (PHP) luk_strba (Python) Eldar_Alibekov (C/C++) Joniel (Python) marvkie (C/C++) beslaneev.astemir (Python) SinRoot (Ruby) tsphere (Python)

Notes on the problem

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