Task: Program Execution
Input (English): 7123, 439, o, a, 5251, z, 3903, 1461, 4319, u, 6539, T, E, K, 2511, 2403, K, E, D, T, 5261, C
Output (English): o, a, z, u, T, E, K, K, E, D, T, C