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, 3, ['8543', '3395', 'J', '1569', '3547', '4241', 'j', '1937']
answer:
3395J


question:
11, 30, ['b', '2057', 'Z', '1485', '5837', 'J', '4493', 'o', '3501', 'j', '7113', '1827', '7597', 'z', 'P', 'a', '4791', 'd', 'D', '5935', 'X', 'C', '2171', '7137', 'G', '6771', '7011', '6509', 'A', '2141']
answer:

711318277597zPa4791dD5935XC21717137G677170116509A2141