Task: Program Execution
Input (English): 6723, 3643, 7099, 7671, e, 8297, c, 3377, 6409, M, 4423, 2925, E, 8597, E, 8589, 1851, h, 9919, 9743, Z, 2157, D, 8635
Output (English): 5, 7, 10, 13, 15, 18, 21, 23