Task: Program Execution
Input (English): 5511, 5609, a, W, 1897, V, 879, 5675, 2677, 7535, 181, Z, 9711, Y, C, 397, O, 7203, h
Output (English): 1, 2, 5, 7, 8, 9, 10, 11, 13, 16, 18