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 operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report final the numerical answer.

Isha ' s pencil is 12 cubes long . If she gets another pencil that is 12 cubes long , how many cubes long are both pencils ?
24