Classify the following sentence as either a declarative, interrogative, exclamatory or imperative sentence.
This is the best day ever!
The given sentence, "This is the best day ever!" is an exclamatory sentence.
Complete the following task based on the instruction and optional input provided.### Instruction:
Classify the following sentence as either a declarative, interrogative, exclamatory or imperative sentence.

### Input:
This is the best day ever!

### Output:
The given sentence, "This is the best day ever!" is an exclamatory sentence.