Task: Assess the emotional content of the tweet and classify it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best represent the tweeter's mental state.
Tweet: @rgam0rtis it's a common problem I've had with every 6 plus. having a regular 6 = not having to worry about the design flaw = working phone
This tweet contains emotions: 
optimism, sadness