Task: Program Execution
Input (English): o, Y, m, 5375, 3355, 9683, S, j, d, 8923, 1929, 9517, m, 7457, 3649, A, T, L, 3783, g, Y, 1985
Output (English): 1, 2, 3, 7, 8, 9, 13, 16, 17, 18, 20, 21