Task: Program Execution
Input (English): 16, 18, ['E', 'T', 'x', '6909', '2741', '5351', '9437', '7251', '7637', 't', '3021', '6705', '8449', '2149', '6669', '7439', 'Y', '4089', 'k']
Output (English): 7439Y4089