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: Consider Input: 6, 7, ['9747', '2771', '8633', '4251', 'v', 'r', '6949', 'm', 'r', 'H']

Output: r6949


Input: Consider Input: 6, 8, ['4589', '6049', 'H', 'I', '5441', 'J', 'a', 'k', 'T', '8913', 't', '9319', 'z', 'E', 'u', 'B']

Output: Jak


Input: Consider Input: 9, 21, ['7903', '9553', 'J', '3439', '6709', '8539', 'Z', 'B', 'B', '455', '5417', 'Q', 'n', 'R', 'k', '639', '6371', 'K', 't', 'W', 'h', '6315']


Output: B4555417QnRk6396371KtWh