Task: Program Execution
Input (English): 2697, U, O, 8891, 5143, f, Q, 689, g, 5873, r, 9041, 1337, 8981, m, o, 5403, 7719
Output (English): 2697, 21, 15, 8891, 5143, 6, 17, 689, 7, 5873, 18, 9041, 1337, 8981, 13, 15, 5403, 7719