Definition: 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.
Input: 1, 6, ['1051', 'T', '1383', 'G', 'm', '1919', '8555', '5935', 'i', 's', 'F', 'G', 'C', '4519', 'o', '2887', 'U', '9971', '4431', 'x']

1051T1383Gm1919