Task: Program Execution
Input (English): 2991 h 787 K q P X R 5577 7447 X 6821 D 8861 1979 4705 923 3535 N 5339 p l 1141 7093 7849
Output (English): 2991, 787, 5577, 7447, 6821, 8861, 1979, 4705, 923, 3535, 5339, 1141, 7093, 7849