In this task, you are given an input list A. You need to find all the elements of the list that are numbers and calculate their sum.

['V', 'h', '5549', 'K', 's', '8337', 'Y', '497', 'z', 'T', '4467', '6333', 'M', '1573', 'y', 'O', '5499', 's', 't', '6205']
38460

['2175', '4539', 'L', 'T', 'q', '2407', 'F', 'V', 'b', '9475', '2279', '4469', '6231']
31575

['3743', '7301', 'F', 'c', '8983', '8179', 'P', '1829', '8565', 'L', 'L', 'P', 'K', 'T', '7949', 'X', 'J', '6903', '2283', '5967']

61702

