Task: Program Execution
Input (English): i, 2873, 8989, T, h, 1155, 7209, G, Y, H, 51, 7363, t, 8147, 869, C, 5171, 1137, 7595, 1837
Output (English): 1, 4, 5, 8, 9, 10, 13, 16