Watermelon rind boiled Juices

Ingredient
    Watermelon rind.
    Sugar.
    Salt.
    Water.

How do
           The watermelon shell casing, remove the outer skin off. It looks like the image here. Sliced ​​watermelon rind into pieces, then add enough water, salt, sugar and a little water until boiling.
Seasonings to your taste.