Task: Program Execution
Input (English): 4531, 2161, i, 2767, N, m, E, 1665, 6559, 5741, 2215, q, A, 5113, 5699, r, 9089, B, u, 1465, a, X, S
Output (English): i, N, m, E, q, A, r, B, u, a, X, S