Task: Program Execution
Input (English): o, V, 2401, 7493, f, 8827, Q, K, 81, 4831, L, 6163, 5143, 7291, v, 9949, 937, 1235, 6825
Output (English): 3, 4, 6, 9, 10, 12, 13, 14, 16, 17, 18, 19