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.

Ex Input:
1, 7, ['6925', '5419', 'b', '1297', '4309', '8919', 'H', 'h', 'P', 'q', '2907', '5573', 'G', '4767', 'U', 'R', '6717', 's', 'I', '4477']

Ex Output:
69255419b129743098919H


Ex Input:
13, 20, ['D', 'y', 'n', 'A', '1611', 'k', 'I', '3431', 'M', '205', 'p', '211', '9233', '2193', 'h', '8671', 'a', '2321', 'o', '5209', 'q']

Ex Output:
92332193h8671a2321o5209


Ex Input:
2, 10, ['9417', '151', 'k', '7695', '7839', 'N', '7279', '5781', '7371', 'o', '6981', '1257', 'H', 'L', '9759', '4121', '133', '2703', '3913', '1933', '4751']

Ex Output:

151k76957839N727957817371o