<image>An ant starts crawling back and forth from the origin 0. The distances it crawls in each segment are as follows: +5, -3, +10, -8, -9, +12, -10. 
Please answer the following questions:
(1) Does the ant eventually return to the starting point 0?
(2) During the crawling process, if the ant is rewarded with 2 sesame seeds for every unit length it crawls, how many sesame seeds does it earn in total?