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: 7, 27, ['9621', 'p', 'k', 'x', '3791', '9511', 'K', 'i', 'q', 'P', '9759', '2335', 'j', '8583', 'V', '285', '8651', 'M', '4399', 'p', 'P', 'f', '7425', '1755', '1479', '9777', '337', '7237']

KiqP97592335j8583V2858651M4399pPf7425175514799777337