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.

Ex Input:
17, 19, ['5683', 'y', 'r', '4601', 'a', 't', 't', 'l', 'F', '227', '8869', 'J', 'X', 'a', '3967', 'm', 'j', '6669', '2221']

Ex Output:
j66692221


Ex Input:
7, 7, ['P', 'j', 'Z', '693', '3865', 'I', 'o', 'L', '185']

Ex Output:
o


Ex Input:
4, 5, ['9331', '8261', '4257', '9845', '3703', '7753']

Ex Output:

98453703