For the tweet "It's my last week at CN! I'm gonna be sad to leave, but this will also be my first planned break since going into animation!", classify the intensity of the emotion sadness. The possible classifications are: 0: no sadness can be inferred, 1: low amount of sadness can be inferred, 2: moderate amount of sadness can be inferred, 3: high amount of sadness can be inferred.
1: low amount of sadness can be inferred