Task: Program Execution
Input (English): 7215, W, x, 4521, j, P, y, f, 8831, N, J, 5661, P, O, 4841, 6541, 4079, 6823, i, 5519, l, 4095
Output (English): W, x, j, P, y, f, N, J, P, O, i, l, 7215, 4521, 8831, 5661, 4841, 6541, 4079, 6823, 5519, 4095