Task: Program Execution
Input (English): 7417, N, 1777, f, 1425, a, 5139, g, 6749, 7367, 1263, 6069, 4415, C, 9777, 5333, 7385, 2771, 8103, 8697, U, W
Output (English): 2, 4, 6, 8, 14, 21, 22