Definition: You are given a math word problem and you are supposed to apply multiple mathematical operators 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.
Input: joshua has 3 toy boxes for his toy cars . he puts in 21 toy cars in the first toy box 31 toy cars in the second toy box and 19 toy cars in the third box . how many toy cars does joshua have together ?
Output:
71