Task: Program Execution
Input (English): 15, 20, ['6789', '2959', '9615', 'R', 'G', '7339', 'Q', 'F', '5663', '8729', 'C', 'e', '2387', 'G', 'w', 'a', 'j', 'd', 'G', '1781', 'Z', '2309', '9201', 'a']
Output (English): w, a, j, d, G, 1781