John has taken an SAT test that consists of two sections (verbal and math). He scored 580 on verbal and 610 on math test, respectively. John later learned that the means and standard deviations of the scores for both sections were as follows: Mean = 505 (std = 50) for the verbal section; Mean = 520 (std=60) for the math section. In terms of the standard scores for both sections, the score of which section was better? What are the z-scores for both sections?