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 find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output 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. Perform the operations in order, i.e., do not concatenate the elements and then reverse the string.
question:
3, 16, ['z', '2195', 'S', '1703', '3137', 'Q', 'D', 'C', 'u', 'F', 'q', 'x', 'B', 'T', 'b', 't', 'l', '3965', '5177', '7607', 't']
answer:
tbTBxqFuCDQ31371703S


question:
3, 8, ['5845', 'L', '5335', 'E', '6311', '8583', '1747', '2181', 'E', '9715', 'Q', 'A', '7847', '9693', '6653', 'W', 'f', 'h']
answer:
2181174785836311E5335


question:
7, 18, ['1375', 'R', '4249', '5511', '2853', '6505', 'w', '6535', '9151', '3305', 'r', 's', 'Z', 'j', '9501', 'i', 'E', 'n', 'P', 'V', '1285', '4321', 'j', 'X', 'N']
answer:

nEi9501jZsr330591516535w