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:
1, 8, ['131', 'M', '8275', '7013', '4435', '4709', '7745', 'm', 'k', 'l']
answer:
131M82757013443547097745m


question:
7, 9, ['8705', '6055', 'j', 'E', '5211', '7127', 'I', '4249', '3847', '5185']
answer:
I42493847


question:
14, 18, ['6701', 'P', '8571', 'W', '6047', 'j', '3439', 'X', 'N', 'Q', '8533', 'c', 'n', 't', '5019', '2729', 'm', '3155', '4655', 'g', 'z', '2217', 'l', '6473', '9979']
answer:

t50192729m3155