Task: Program Execution
Input (English): 6, ['9771', 'X', 'X', '473', 'S', 'Z', '6017', 'j', 'N', '5035', '6663', 'S', 'a', '2855', '3091', 'L', '1665', 'm', 'a', '4527', 'M', '1269', '9735', 'R', 't', '2251', 'R', '8891', '163', 'r', '9055', '9163', '2689', '5783', '9751', 'I', 'U', '5609']
Output (English): 9771, 6017, a, a, t, 9055, U