Simplest Method (Beats 94% / 81%)
\n# Code\n\nclass Solution:\n    def countSeniors(self, details: List[str]) -> int:\n        ans = 0\n        for i in details:\n            if int(i[11:13]) > 
\n# Code\n```\nclass Solution:\n    def countSeniors(self, details: List[str]) -> int:\n        ans = 0\n        for i in details:\n            if int(i[11:13]) > 60:\n                ans += 1\n        return ans\n```
['Python3']