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:
3, 4, ['9137', '2037', 'F', 'v', 'j', 'e', 'q', '9259', 't', '3417', '5783', 'Y', 'X', '2675', 'Q', 'q', '555']

Ex Output:
Fv


Ex Input:
2, 13, ['7593', '5389', '527', '4187', '9389', 'b', 'o', 'h', '2517', '4277', 'i', 'o', 'i', '6621', '6683', '2371', 'e', '7501', 'd', '6353', '8289', 'Y', '9909', '2565', '3411']

Ex Output:
538952741879389boh25174277ioi


Ex Input:
4, 8, ['3559', 'm', '7169', '8961', '3463', 'a', '1257', '1837', 'S']

Ex Output:

89613463a12571837