Added homework for "3. Operators and Expressions"
Added homework for "3. Operators and Expressions"

TelerikAcademy-Cloning/CSharp-Part-1,spior/CSharp-Part-1,spior/CSharp-Part-1,TelerikAcademy-Cloning/CSharp-Part-1,TelerikAcademy-Cloning/CSharp-Part-1,spior/CSharp-Part-1