Task: Program Execution
Input (English): ['B', 'P', '9811', '9755', 'L', '2115', 'r', 'e', 'k', 'e', 6927, 639], ['u', 'k', 8553, 't', '9811', '9755', 'L', '2115', 'r', 'X', 'p', 'f', 'R']
Output (English): 9811, 9755, L, 2115, r