Task: Program Execution
Input (English): F, Q, 7423, 1709, 4123, 4127, i, 6233, S, 1997, 9711, F, 4833, 5413, R, 7481, 8091, g, 3309, z
Output (English): 7423, 1709, 4123, 4127, 6233, 1997, 9711, 4833, 5413, 7481, 8091, 3309