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.
Input: 4, 15, ['735', '3915', 'h', 'g', 'F', 'l', 'g', '8733', 'b', '6443', '8477', 'm', '9929', '7527', 'c', '9929', 'f', 'X', 'm']

gFlg8733b64438477m99297527c