Task: Program Execution
Input (English): 2507 E 2381 171 D p 9807 3777 8865 9539 8169 7565 N W 7759 q 431 3525 4951 K I J H 7183 1693 9931 c 2699 2129 757
Output (English): E, D, p, N, W, q, K, I, J, H, c, 2507, 2381, 171, 9807, 3777, 8865, 9539, 8169, 7565, 7759, 431, 3525, 4951, 7183, 1693, 9931, 2699, 2129, 757