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:
11, 12, ['4435', '1173', 'w', 'M', '171', 'l', '3059', '4067', 'f', '5009', '4615', '6371', 'l', '2319', '1361', 'v']

Ex Output:
46156371


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:
15, 15, ['Z', '5299', 'R', '9055', 't', '9469', 'h', '6207', '2351', '9111', 't', 'z', 'e', 'I', 'a', 't', '4617', '9353', '5071', '3115']

Ex Output:

a