Task: Program Execution
Input (English): 7649, A, B, 9731, J, j, L, Z, a, 4449, 1295, 8573, o, D, 4523, 4003, I, 5805, 249
Output (English): A, B, J, j, L, Z, a, o, D, I, 7649, 9731, 4449, 1295, 8573, 4523, 4003, 5805, 249