Task: Program Execution
Input (English): 4909, 3345, 2753, 6263, 3441, 3837, d, z, 9287, P, 3797, 6305, z, 4531, C, 3623, S, 4311, 7007, l
Output (English): 4909, 3345, 2753, 6263, 3441, 3837, 9287, 3797, 6305, 4531, 3623, 4311, 7007