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: 2, 4, ['I', 's', 'd', '7253', '4377', '691', '4419']

SOLUTION: sd7253

PROBLEM: 3, 4, ['l', '2121', '2511', '383', '9105']

SOLUTION: 2511383

PROBLEM: 11, 23, ['F', 'F', 'D', 'R', 'L', 'Z', 'D', 'B', 'I', 'J', 'U', 'L', '2811', '7157', 'j', 'o', '5377', '207', '6579', 'U', '2909', '7277', '9513']

SOLUTION:
UL28117157jo53772076579U290972779513