Task: Program Execution
Input (English): u D Z C 5751 E O x R 811 4073 Y 6913 6713 V 3693 7773 U R 1541 T 7899 V 957 l 5155 2601 6415 X 8305 T 713 W B
Output (English): 1, 2, 3, 4, 6, 7, 8, 9, 12, 15, 18, 19, 21, 23, 25, 29, 31, 33, 34