Task: Program Execution
Input (English): 1, 3, ['r', 'x', 'u', 's', '9591', 't', 'I', 'A', 'b', '5853', '7855', '7463', '6663', '2407', 'j', 'r', '8013', 'b']
Output (English): r, s, I, 5853, 6663, r