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:
6, 7, ['9681', '4525', 'd', 'K', 'g', '9815', '1051', 'w', 'U', '2131', 'h']
answer:
98151051


question:
2, 7, ['5331', '7757', 'X', 's', '1841', '553', 'P', 'O', 'W', 'Z', 'B', 'H', '4363', 'G', 'a', 'X', '1541', 'P', '3003', '7635', '9645', 'V', '195', 'Q', 'R', '869', 't']
answer:
7757Xs1841553P


question:
9, 18, ['p', '9279', 'B', '3905', '5663', '1665', '2813', '8511', 'I', 'e', 'U', '7545', '4465', 'z', '7051', 'G', 'E', '2337', 'C', '9553']
answer:

IeU75454465z7051GE2337