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:
7, 8, ['8843', '5431', 'X', 'g', '9661', 'x', '4869', '7651']
answer:
48697651


question:
3, 4, ['9137', '2037', 'F', 'v', 'j', 'e', 'q', '9259', 't', '3417', '5783', 'Y', 'X', '2675', 'Q', 'q', '555']
answer:
Fv


question:
2, 2, ['a', 'z', 'S']
answer:

z