Task: Program Execution
Input (English): u, 2949, 1129, 9317, 9213, I, 1029, 4547, 3333, 6289, 5065, 9443, 2879, a, S, 1277, 3153, S
Output (English): u, I, a, S, S, 2949, 1129, 9317, 9213, 1029, 4547, 3333, 6289, 5065, 9443, 2879, 1277, 3153