Given the task definition and input, reply with output. You are given a math word problem and you are supposed to apply a single mathematical operator like addition, subtraction, multiplication, or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

when the building is done they wanted to make it shine brightly in the night . to fix that they commissioned 432 fireflies and 297 glow worms . how many animals worked in the lights ?
729