Task: Program Execution
Input (English): a, x, 9121, q, 9437, 9901, o, A, t, b, 7947, 1165, r, r, 71, J, 7715, 5315, 5531
Output (English): 9121, 9437, 9901, 7947, 1165, 71, 7715, 5315, 5531