Task: Program Execution
Input (English): 7463, J, 1527, B, 2269, m, a, 7953, 881, k, x, e, Z, 4947, 5463, 9585, 7445
Output (English): 7463, 1527, 2269, 7953, 881, 4947, 5463, 9585, 7445