TASK DEFINITION: In this task, you are given inputs i,j, and A, where i and j are integers and A is a list. You need to concatenate all elements of A from the ith element to the jth element, and print the resultant string. i and j will be non-negative, and will always have a value less than the length of A. i will always be less than j.
PROBLEM: 4, 10, ['1745', 't', 'W', 'u', '929', '4873', '9479', 'P', '7881', '7971', 'I', '3813', 'W', 'x', 'G', '5495', 'S', '2333', 't', '2175', 'q', '3063', '3409', 'N', 'H', 'z', '4567', '8159', '3641', 'K']

SOLUTION: u92948739479P78817971

PROBLEM: 17, 19, ['5683', 'y', 'r', '4601', 'a', 't', 't', 'l', 'F', '227', '8869', 'J', 'X', 'a', '3967', 'm', 'j', '6669', '2221']

SOLUTION: j66692221

PROBLEM: 1, 7, ['B', 'f', 'i', 'E', 'J', '8307', 'A']

SOLUTION:
BfiEJ8307A