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: 2, ['e', '5063', 'r', '9979']

SOLUTION: e, r

PROBLEM: 19, ['A', '9201', 'Y', 'b', 'o', '7573', 'B', '1637', '6779', 'x', '9771', '2851', '5145', '6829', '9907', 'K', 'Z', '4233', '1979', 'n', 'O', 'N', 'p', '6929', 'y', '6049', 'U', 'C', 'E', 'g', '6279', '1829', 'z', 'X', '6923', '5989', 'F', '5931', 'x', '4119', 's']

SOLUTION: A, n, x

PROBLEM: 7, ['T', '5873', '9501', '4591', '4797', '4827', 'T', 'l', '4489', '3251', 'q', '1827', '8889', 'A', '2443', '6057', 'j', 'c', '5475', '9301', '3771', 'd', 'H', 'V', 'B', '2347', 'J', '4767', 'A', '1753', 'O', '1415', '8617', 'c', '1461', '7609', 'f', '4837']

SOLUTION:
T, l, 2443, d, A, 7609