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:
18, 19, ['7745', 'u', '4007', '7081', 'f', 'G', '6389', '9397', '1873', '8991', 'p', '8205', '631', '833', '3729', 'l', '6093', '1119', '669', '2319', 'S', 'w', '6585', '6491', 'e', 'B', '8523', '8291', '5365', 'e']
answer:
1119669

question:
7, 8, ['9131', 'a', '1233', 'B', '2501', 'b', '7551', '3155', 'K', 'K', '2205', 'H', '2059', '6079', '6225', '9781', '5759', 'a', 'W', '8557', 't', 'j']
answer:
75513155

question:
3, 11, ['I', 'U', '1645', 'i', '7585', '5899', 'x', '9689', '8165', 'r', '1891', '5793', 'h', '4979', 'y', 'b', '8529', '9405', '3363', '3965', 'l', '4419', 'J', 'x', 't']
answer:
1645i75855899x96898165r1891