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.

['X', 'u', 'B', '269', '9089', 'M', '5175', 'K']
14533

['i', 'o', '1321', 'I', 'W', 'e', '1201', 'I', 'e', 'F', '9841', 'm', '9827', 'q', 'f', 'X', '8261']
30451

['1141', '811', '1727', '3979', 'S', 't', 'M', 'L', '7753', '9911', 'X', 'X', 'g', 't', '7137']

32459