TASK DEFINITION: In this task, you are given an input i,A where i is an integer and A is an array. You need to find every ith element of A starting with the 1st element.
PROBLEM: 7, ['9467', '6323', 'M', '3767', 'a', 'L', '1663', 'h', '4239', '6471', '9773', 'l', 'Q', 'F', 'f', '5137', 'Z', '8465', '8653', '4043', 'H', 'M', '631', 't', '9691', '4845', 'c', 'f', 'H', 'r', 'O', 'j']

SOLUTION: 9467, h, f, M, H

PROBLEM: 21, ['q', '6533', '1283', 'E', 'V', '2077', 'B', 'D', '7745', 'J', 'V', 'y', 'F', '597', 'V', 'H', 'A', '8711', '849', 'J', '4401', '2533', '2529', 'G', 'l', '6971', '1689', 'T', 'F', 'R', '6089', 'k', '7573', 'U', 'E', 'g', '5059', '4961', 'V', 'h', '7857', '2919', 'p', '8419', 'f', 'X', '9275', 'Q']

SOLUTION: q, 2533, p

PROBLEM: 3, ['U', 'n', 'f', '4075', 'H', 'K', '9017', '3781', '6079', '9479', 'T', 'F', 'O', '5065', 'F', 'W', 'm', '5715', '2621', '6523', 't', 'P', 'f', 'I', 'E', '6249', '1869', 'i', '6885', '6681', 'l', 'x', '9141', '2743', '9735', '5359', '2649', 'Y', '5579', '3559']

SOLUTION:
U, 4075, 9017, 9479, O, W, 2621, P, E, i, l, 2743, 2649, 3559