{"raw_statement":[{"iden":"statement","content":"读入一个单精度浮点数，保留 $3$ 位小数输出这个浮点数。\n\n**提示：无需考虑浮点误差。**"},{"iden":"input","content":"只有一行，一个单精度浮点数。"},{"iden":"output","content":"也只有一行，读入的单精度浮点数。"}],"translated_statement":null,"sample_group":[["12.34521","12.345"]],"show_order":[],"formal_statement":null,"simple_statement":null,"has_page_source":false}