{"raw_statement":[{"iden":"statement","content":"输入一个浮点数 $n$，输出这个浮点数的绝对值。"},{"iden":"input","content":"输入一个浮点数 $n$，其绝对值不超过 $10000$。"},{"iden":"output","content":"输出 $n$ 的绝对值，保留到小数点后两位。"}],"translated_statement":null,"sample_group":[["-3.14","3.14"]],"show_order":[],"formal_statement":null,"simple_statement":null,"has_page_source":false}