Task: Program Execution
Input (English): q, 1749, 7775, J, 1851, 6031, f, Y, 3757, 2969, 7599, C, 4391, 6639, F, 9173, 5745, x, C, J, 2473, T, e
Output (English): q, J, f, Y, C, F, x, C, J, T, e, 1749, 7775, 1851, 6031, 3757, 2969, 7599, 4391, 6639, 9173, 5745, 2473