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:
4, 27, ['u', '7157', 's', 'H', '9231', '5861', '6433', '1059', '887', 'm', '9571', '2873', '2305', 'y', '1171', '3205', '321', '3299', '2217', 'I', '701', '8243', 'b', '627', '2531', '4151', 'B', 'G']

Ex Output:
H9231586164331059887m957128732305y1171320532132992217I7018243b62725314151B


Ex Input:
2, 3, ['l', 'c', '4671']

Ex Output:
c4671


Ex Input:
22, 23, ['7953', '4679', 'R', 'r', '9459', 'j', 'P', 'q', 'z', '7801', 'Y', 'a', 'r', 'V', '3583', '7621', 's', '8385', '8295', 'G', 'o', '4503', 'Z']

Ex Output:

4503Z