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:
2, 3, ['Q', 'X', '1639', 'm', 'o', '9075', '4261', 'd', 'T', 'F', '3063']

Ex Output:
X1639


Ex Input:
3, 5, ['951', '6733', 'g', '1119', 'U', '4025']

Ex Output:
g1119U


Ex Input:
9, 18, ['G', '717', '8751', '4719', 'z', '2473', '3637', 'q', 'V', '4171', 'R', '2437', 'K', '3469', '8479', 'I', 'S', 'd', '5373']

Ex Output:

V4171R2437K34698479ISd