Task: Program Execution
Input (English): 2469 R P a P H D W 7817 d D 3649 c B q 9419 V A 6059 C 5815 6767 4809 9365 5811 z 5423 3791
Output (English): 2469, 7817, 3649, 9419, 6059, 5815, 6767, 4809, 9365, 5811, 5423, 3791