数列求和再取平均数的问题，要求运用C语言的代码思想的程序的设计过程怎么才能实现的呢？

Question

Problem Description
Find the biggest integer n (1 <= n <= N) and an integer x to make them satisfy

Input
The input consists of several test cases. Each test case contains a integer N, 1<=N<=10^18.The input ends with N = 0.

Output
In one line for each case, output two integers n and x you have found.

Sample Input
1
2
0

Sample Output
1 1
1 1