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: 19, 20, ['s', '2571', 'q', '2397', 'T', '3995', 'W', 'f', '7847', 'w', 'b', 'X', '5027', 'z', 'I', '9187', '2715', '9005', 'K', 'h', 'A']

SOLUTION: Kh

PROBLEM: 3, 19, ['2549', 'N', 'w', 'E', '3855', 'u', 'x', 'Y', 'K', '7323', '9181', '2499', 'p', '821', '2731', '2451', '8037', 'n', '1251', '9403', '61', '3', '6575', '311', 'C', 'b', 'h']

SOLUTION: wE3855uxYK732391812499p821273124518037n1251

PROBLEM: 2, 5, ['k', 'F', 'b', 'S', '729', '5423', 'P']

SOLUTION:
FbS729