{"raw_statement":[{"iden":"statement","content":"给出一个正整数 $n$，求出 $1,2,3,\\cdots,n$ 中全部的奇数和、偶数和。"},{"iden":"input","content":"一个整数，表示 $n$。"},{"iden":"output","content":"一行两个整数，表示奇数和及偶数和。"},{"iden":"note","content":"$1\\le n\\le 2\\times10^8$。"}],"translated_statement":null,"sample_group":[["6","9 12"]],"show_order":[],"formal_statement":null,"simple_statement":null,"has_page_source":false}