Given the input, what is the output of this function?
function (input) {
	return input * 2
}

input: 2
output: 4
Complete the following task based on the instruction and optional input provided.### Instruction:
Given the input, what is the output of this function?
function (input) {
	return input * 2
}


### Input:
input: 2

### Output:
output: 4