Task: Program Execution
Input (English): g, 6743, 7909, v, t, g, 8595, X, F, m, N, x, 3349, Q, J, 579, u, t, 9533, h, 2607
Output (English): 1, 4, 5, 6, 8, 9, 10, 11, 12, 14, 15, 17, 18, 20