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: 21, ['2443', 'R', '2443', 'L', '6597', '4611', 'G', '9571', 'A', '2327', '3473', '4629', '7641', '6883', 'X', 'Y', 'G', 'm', '1785', '4699', 's', '6591', '4617', '5265', 'Q', 'y', 'I', 'a', 'b', 'H', 'w', 'Y', 'j', '7139', '2591', '6815', 'w', '9225', '459', 'l', 'I', '4191', '6483', 'R', '7037', 'w', 'K', 'S', 'I']

SOLUTION: 2443, 6591, 6483

PROBLEM: 5, ['5829', '3361', 'u', 'e', 'e', 'P', '3955', 'J', 'Z', 'x', 'p', '8221', '3871', 'F', 'f', '2363', '8931', 'a', '199', '8215', '4355', '6757', '781', 'm', '3351', '5891', 'x', 'L', '3197', 'Y', 'a', '6377', 'I', 'Q']

SOLUTION: 5829, P, p, 2363, 4355, 5891, a

PROBLEM: 7, ['2439', '6843', 'v', '1113', '6821', 'T', 'Y', '1025', 'H', 't', '9245', 'T', 'b', '3079', 't', '5265', 'B', '541', 'J', 'N', 'd', 'D', 's', '4887', '25', '9489', 'n', '2271', '9829', 'r', 'P', 'B', 'M', '8145', '7705', 'j', '5859', '6929', 'm', '813', '7131', 'Q', '9963', 'l', '6291']

SOLUTION:
2439, 1025, t, D, 9829, j, 9963