Task: Program Execution
Input (English): f, F, F, 9359, 9031, 4895, N, 2467, j, 4607, 1783, 2403, K, 2651, U, K, 2151, 3903
Output (English): f, F, F, N, j, K, U, K, 9359, 9031, 4895, 2467, 4607, 1783, 2403, 2651, 2151, 3903