In this task, you are given an input list A. You need to extract and sort the unique digits used in the list in ascending order. Return -1 if there is no digit in the list.

['a', 'n', '423', 'y', 'y', 'u', '55', 'y', '295', '73', 't', 'p']
2, 3, 4, 5, 7, 9

['c', '471', 'l', 'z', '23', 'c', '43', 'o', '175', 'w', 'c', 'p', '431']
1, 2, 3, 4, 5, 7

['f', '453', 'v', 'j', 'c', 'y', 'o', '293']

2, 3, 4, 5, 9