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:
3, 10, ['B', 'F', '2005', '3525', 'I', '8515', 't', '9751', '7049', '3233', 'M', '1313']
answer:
20053525I8515t975170493233


question:
15, 18, ['3665', '8799', 'M', '7717', '3221', '1957', '7631', '5299', '2455', '9331', 'N', '5847', '3955', 'W', 's', 'c', '3801', '733', 'u', 't', 'c']
answer:
sc3801733


question:
10, 12, ['8961', '2177', '4045', 'C', '4139', 'z', 'Y', 'w', '8335', '9703', '4655', '429', '765', '6627', '5481', '9169', '5855', 'H']
answer:

97034655429