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:
6, 7, ['9747', '2771', '8633', '4251', 'v', 'r', '6949', 'm', 'r', 'H']

Ex Output:
r6949


Ex Input:
4, 17, ['D', 'F', '2105', '4905', 'k', 'v', '9761', '2955', 'I', '817', '699', 'P', 'l', 'h', 'Z', 'P', 'L']

Ex Output:
4905kv97612955I817699PlhZPL


Ex Input:
5, 29, ['v', 'U', '4379', 'k', '8301', '7055', '9961', 's', '4581', '9453', '1551', '893', '3077', '5345', '7199', '3335', 'F', '5865', 'R', 'H', '6593', 'J', '1581', '5899', 'r', '8159', '869', 'W', 'm']

Ex Output:

830170559961s4581945315518933077534571993335F5865RH6593J15815899r8159869Wm