Complete the code to output $\text{'}1000$ meters $=1$ kilometer'. On the next line, output the value of length$\_$meters to one digit after the decimal point, followed by $\text{'}$ meters $=\text{'},$ and then the value of length$\_$km to three digits after the decimal point, and lastly $\text{'}$ kilometers'.

Ex: If the input is $12000\mathrm{.}0,$ then the output is:

$1000$ meters $=1$ kilometer

$12000\mathrm{.}0$ meters $=12\mathrm{.}000$ kilometers