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: 12, 21, ['v', 'I', 'o', 'q', 'u', '4689', '1379', 'G', '7635', '8729', '6547', '8037', '531', '5137', 'y', '89', '6521', '2019', '8051', '6433', '2565', '8059', '111', 'H', 'I', '9455', '5147']

SOLUTION: 80375315137y8965212019805164332565

PROBLEM: 1, 19, ['w', 'w', 'C', '8571', '7565', '7299', 'e', 'Y', '4113', 'I', '3435', 'R', '5171', '5231', 'Q', '4559', 'q', '9743', 'g', '4405']

SOLUTION: wwC857175657299eY4113I3435R51715231Q4559q9743g

PROBLEM: 1, 2, ['u', 'R', 'O', 'N', '4359', '3999', 'z', '5237', 'T', '2913', 'F', 'h', 'L', '737', '5773']

SOLUTION:
uR