Task: Program Execution
Input (English): A, j, 9415, N, 4863, U, B, 7973, A, x, W, X, O, 8389, m, D, 6849, 3871, 7873, u, 8881, 9941
Output (English): A, j, N, U, B, A, x, W, X, O, m, D, u, 9415, 4863, 7973, 8389, 6849, 3871, 7873, 8881, 9941