Task: Program Execution
Input (English): 21, 25, ['9761', '1943', '2875', 't', 'R', 'o', '5107', '9021', 'r', '1051', 'T', 'B', 'c', 'V', 'G', '2921', '4999', 'Q', '9713', 'b', 't', '681', 'K', '9109', 'i']
Output (English): i9109K681t