（本文内容测试环境：iPhone 12手机、iOS 14系统） 1、在桌面上，用手指向左滑到最右屏，调出App开发者_C百科资源库。
I have some big numbers (again) and i need to find if the sum of the digits is an even number. I tried this: finding the sum of the digits with a while loop and then checking if that sum % 2 equals 0
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