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:
10, 19, ['T', '8237', 'X', '9029', 'D', '8639', '6875', 'V', '6311', 'v', '2085', 'E', '9863', 'R', '2665', 'Q', '75', '6521', '3553']
answer:
v2085E9863R2665Q7565213553


question:
2, 9, ['4219', 'x', '2133', 'S', 'S', '6737', 'V', 'O', '4829', 'L', 'J', 'B', '4759', '5367', 'r']
answer:
x2133SS6737VO4829


question:
7, 15, ['5103', '9193', '8061', 'U', '7567', 'T', '6899', '3537', '2741', 'B', '5787', 't', 'M', 'n', 'Y']
answer:

689935372741B5787tMnY