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:
26, 27, ['9819', 'M', 'z', '9977', 'U', '5651', 't', '453', 'D', 'o', 'l', 'T', '779', '2341', 'N', 'x', '2179', 'B', 'J', 'X', 'X', 'N', '5371', '1293', 't', 'j', '3971']
answer:
j3971


question:
2, 7, ['6269', '4995', 'K', 'C', 'p', 'd', '9839', '5131', '5131', '287', '2087']
answer:
4995KCpd9839


question:
2, 3, ['2233', 'U', '8579', 'y', '1295', '85']
answer:

U8579