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:
1, 2, ['663', '6503']

Ex Output:
6636503


Ex Input:
5, 20, ['T', '4981', '219', 'S', '9051', 'n', 'L', '8145', '8869', '7773', 'x', '8985', 'F', 'j', 'n', '3479', '1133', '8525', '3163', 'Q', '6191', 'Z', 'b', '2545']

Ex Output:
9051nL814588697773x8985Fjn3479113385253163Q


Ex Input:
11, 12, ['1803', '9863', '2483', '1857', 'w', 'D', '2085', '1951', '5', 'u', 'E', 'c']

Ex Output:

Ec


