Task: Program Execution
Input (English): 7, ['N', 'R', 'W', 'l', '6303', 'm', '4597', 'Z', '1711', 'S', '8013', '6155', 'X', '167', 'l', '6689', 'D', 'l', 'g', 'I', 'w', 'x']
Output (English): N, Z, l, x