Task: Program Execution
Input (English): 4, 13, ['u', '7821', 'H', '781', 'C', '3231', 'L', 'P', 'M', '3447', '1655', 's', '7909', '4417', '3923']
Output (English): 7909, s, 1655, 3447, M, P, L, 3231, C, 781