Complete the code to output $"1000$ milligrams $=1$ gram". On the next line, output the value of weightMg to three digits after the decimal point, followed by $"$ milligrams $=",$ and then the value of weightGrams to five digits after the decimal point, and lastly $"$ grams". End with a newline.

Ex: If the input is $5000\mathrm{.}000,$ then the output is:

$1000$ milligrams $=1$ gram

$5000\mathrm{.}000$ milligrams $=5\mathrm{.}00000$ grams