Task: Program Execution
Input (English): 7317, X, E, 8869, y, 5595, U, b, H, T, 6459, C, N, d, 5217, t, 4779, A, z, 545, 6463, 1901, g
Output (English): 1, 4, 6, 11, 15, 17, 20, 21, 22