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: 6, 10, ['7683', 'C', 'W', 'O', '6585', 'X', '8763', 'f', '8057', '4115', 'Z', '7255', '4425', 'S', '6415', 'Y', 'n', 'R', '189', 'D']

X8763f80574115