{"raw_statement":[{"iden":"statement","content":"用递归算法将一个十进制整数 $X$（$1 \\le X \\le 10^9$）转换成任意进制数 $M$（$2\\le M\\le16$，$M$ 为整数）。"},{"iden":"input","content":"一行两个数，第一个十进制整数 $X$，第二个为进制 $M$。"},{"iden":"output","content":"输出结果。"},{"iden":"note","content":"**样例解释**。\n\n将十进制 $31$ 转化为十六进制数。"}],"translated_statement":null,"sample_group":[["31 16 ","1F"]],"show_order":[],"formal_statement":null,"simple_statement":null,"has_page_source":false}