$17\mathrm{.}21$ PRACTICE: Loops $($for$)*$: Output sequence

$(1)$ Given an integer n$,$ write a for loop that outputs the numbers from $-$n to $+$n$.$ Assume n is nonnegative. End the sequence with a newline.

Enter an integer:

$2$

Sequence: $-2-1012$

$(2)$ If n is negative, treat as the absolute value. So n of $-2$ is the same as n of $2.$ Hint: Use an if statement before the for loop, to compute the absolute value of n$.$

Enter an integer:

$-2$

Sequence: $-2-1012$