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, 9, ['4155', 'z', '1045', 'b', '721', '6473', 'l', 'k', 'M', '8775', '2565', 'P', '669']

SOLUTION: kM

PROBLEM: 1, 5, ['3123', '67', '6019', '9385', '8251', 'b', 'D', '4957', 'u', '2091']

SOLUTION: 312367601993858251

PROBLEM: 1, 17, ['5793', 'q', 'W', 'W', '4413', 'U', 'M', '9539', 'U', '2805', 'm', 'v', '4479', 'I', '6115', 'm', '5835', 'M', '2063', '895', '8633', 'z', 't', '8093', 't', '5555', '3903', '4465', '6649']

SOLUTION:
5793qWW4413UM9539U2805mv4479I6115m5835