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: 7, 10, ['6131', '483', 'P', '7637', '6697', 'M', '1979', 'R', 'I', '4607', 'm', '3803', 's', 'F', '873', 'x', 'f']

1979RI4607