Task: Program Execution
Input (English): a, 4405, 335, M, 3347, X, B, 841, 219, 7029, 4933, C, 6133, q, r, 4215, c, 2829, d, 9559, 4679, 8725, N, P
Output (English): a, M, X, B, C, q, r, c, d, N, P, 4405, 335, 3347, 841, 219, 7029, 4933, 6133, 4215, 2829, 9559, 4679, 8725