Task: Program Execution
Input (English): 6231, v, Q, O, 7615, 6699, 7809, a, D, z, 8365, q, 6067, R, d, z, 7867, 249, 2675
Output (English): 6231, 7615, 6699, 7809, 8365, 6067, 7867, 249, 2675