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.

[EX Q]: 1, 2, ['663', '6503']
[EX A]: 6636503

[EX Q]: 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']
[EX A]: u92948739479P78817971

[EX Q]: 2, 15, ['C', 'Q', '8921', '6023', '625', 'T', 'M', 'n', 'Z', '9819', '2361', 'E', 'l', 'E', 'I', '5099', 'i', 'O', 'w', '5517', '2973', 'o', '9949', 'I']
[EX A]:
Q89216023625TMnZ98192361ElEI