Task: Program Execution
Input (English): 4, 7, ['6941', '3981', '8249', 'H', '7685', 'z', '2077', 'U', 'L', '3187', 'W', 'K', 'C', 'V', 'U', 'j', 'z', '1159', '2423', '9457', '2199', '9739']
Output (English): H, W, 1159