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: 8, 13, ['469', '2079', 'r', '3969', '9143', 'K', 'U', 'w', 'U', 'b', 'N', '8587', '7767', 'f']

SOLUTION: wUbN85877767

PROBLEM: 7, 19, ['1899', '4271', 'D', '8199', 'm', '4847', '3631', '7637', '4429', '7541', 'g', '6763', '8281', 'N', '5505', '3547', '2173', 'P', 'R', '655', '4599', 'y', 'Z', '2059', '3229', 'c', '4363', '8351']

SOLUTION: 3631763744297541g67638281N550535472173PR

PROBLEM: 20, 22, ['C', '9065', '1397', 'Q', 'G', '257', '4075', '423', '5427', 'N', 'U', '4511', 'o', 'Q', '7843', 'N', '3511', 'W', '9211', 'v', '8763', 'v', '4081', '8213', 'K', 'M', '4435', '4081', 'n']

SOLUTION:
v8763v