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.
--------
Question: 1, 5, ['W', 'F', 'J', '7019', '4221', '9765', '3757', '6747', 'i', 'e', 'R', 'N', '6331', 'C', '3291', 'Z', 'a', 'f', 'Y', '5667', '1009']

Answer: WFJ70194221


Question: 1, 15, ['F', '6719', '7233', '4085', 'Q', 'N', '3827', '9487', 'o', '2955', '3199', '6321', 'R', '1021', 'u', 'k', '9039', 'k', 'c', '1197', '805', 'f', '5155', 'P', 'm', '6037', 'J', '6089', 'W', 'N']

Answer: F671972334085QN38279487o295531996321R1021u


Question: 7, 13, ['9881', '215', '1685', 'L', 'I', 'v', 'B', '3449', '7339', 'E', 'g', 'a', 'F', '6303', '3595', 'L', 'j', '4749', 'n', 'B', 'O', 'T', 'b', 'W', 'f', '5745', '115', 'n', 'J', '5509']

Answer:
B34497339EgaF