Task: Program Execution
Input (English): 517, 3545, 71, x, 8097, 8495, 5583, S, e, 7649, 5293, U, k, t, 4949
Output (English): 517, 3545, 71, 24, 8097, 8495, 5583, 19, 5, 7649, 5293, 21, 11, 20, 4949