In this task, you are given an input list. A list contains several comma-separated items written within brackets. You need to return the count of all the numerical elements in the given list. Return 0 if no numerical element in the list.

['4905', '4397', 'E', '521', '305']
4

['s', 'P', '2531', 'Q', 't', 'n', 'O', '7089', '9393', 'Q', '4271', 'r', 'Y', '531', '5111', 't', '2381', 'p', '3673', 'i', 'V', '211', '3401', 'M', '9063', '2157', 'm', '4387', '2467', '9801', '3683', '3757', '7535', 'c', '8767', 'z', 'r', 'b', '8131', '2667']
21

['z', 'r', '4159', 'F', 'Y', '6315', '4499', '3805', '8253', '8199', 'D', 't', '327', '7233', 'D', 'U', 'y', 'T', '5163', 'E', '1263', '4527', 'G', 'Q', '9589', '2529', '9687', '9635']

15