Braingolf, 1 byte

l

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Prints 0 (the current length of the stack)

Braingolf, 2 byte

4*

Prints 16. 4 can be replaced by any number n where 3 < n < 10

###Explanation:

4*
4 Pushes 4 to the stack
 * Monadic multiplication, squares the last item on the stack
 Implicit output of the last item on the stack

Braingolf, 1 byte

l

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Prints 0 (the current length of the stack)

Braingolf, 2 byte

4*

Prints 16. 4 can be replaced by any number n where 3 < n < 10

Explanation:

4*
4 Pushes 4 to the stack
 * Monadic multiplication, squares the last item on the stack
 Implicit output of the last item on the stack

Braingolf, 1 byte

l

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Prints 0 (the current length of the stack)

Braingolf, 1 byte

l

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Prints 0 (the current length of the stack)

Braingolf , 2 byte

4*

Prints 16. 4 can be replaced by any number n where 3 < n < 10

###Explanation:

4*
4 Pushes 4 to the stack
 * Monadic multiplication, squares the last item on the stack
 Implicit output of the last item on the stack