instruction:
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.
question:
2, 4, ['O', '3315', '5639', 'e', '6549', '6395', 'V', '7611', 'M', '4209', '8213', '8447', '7229', '5145', 'C', 'o', '8467', 'w', '891', 'V', 'g', 's']
answer:
33155639e


question:
1, 7, ['D', 'f', '547', 'r', 'W', '8611', '869', '6649', 'V', '6969', '2731', 'q', '3687', 'q']
answer:
Df547rW8611869


question:
3, 4, ['F', '7521', 'R', '6859', '2391']
answer:

R6859