Task: Program Execution
Input (English): 8, ['6197', 'I', 'k', '4031', 'y', 'z', '2903', '503', 'S', '7521', 'a', 'Y', '7791', 'z', '6455', '8939', '7541', '51', 'B']
Output (English): S, 7521, a, Y, 7791, z, 6455, 8939, 7541, 51, B