Problem B. Rational Number Tree

本文探讨了无限完全二叉树中元素排列规律及如何通过输入找到特定位置或元素,涉及数学归纳与数论应用。

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The contest is over. You will be able to try solving the problems for practice soon.
Small input
9 points
The contest is finished.
Large input
12 points
The contest is finished.

Problem

Consider an infinite complete binary tree where the root node is 1/1 and left and right childs of node p/q are p/(p+q) and (p+q)/q, respectively. This tree looks like:

         1/1
    ______|______
    |           |
   1/2         2/1
 ___|___     ___|___
 |     |     |     |
1/3   3/2   2/3   3/1
...
It is known that every positive rational number appears exactly once in this tree. A level-order traversal of the tree results in the following array:
1/1, 1/2, 2/1, 1/3, 3/2, 2/3, 3/1, ...

Please solve the following two questions:

  1. Find the n-th element of the array, where n starts from 1. For example, for the input 2, the correct output is 1/2.
  2. Given p/q, find its position in the array. As an example, the input 1/2 results in the output 2.

Input

The first line of the input gives the number of test cases, TT test cases follow. Each test case consists of one line. The line contains a problem id (1 or 2) and one or two additional integers:

  1. If the problem id is 1, then only one integer n is given, and you are expected to find the n-th element of the array.
  2. If the problem id is 2, then two integers p and q are given, and you are expected to find the position of p/q in the array.

Output

For each test case:

  1. If the problem id is 1, then output one line containing "Case #x: p q", where x is the case number (starting from 1), and pq are numerator and denominator of the asked array element, respectively.
  2. If the problem id is 2, then output one line containing "Case #x: n", where x is the case number (starting from 1), and n is the position of the given number.

Limits

1 ≤ T ≤ 100; p and q are relatively prime.

Small dataset

1 ≤ npq ≤ 216-1; p/q is an element in a tree with level number ≤ 16.

Large dataset

1 ≤ npq ≤ 264-1; p/q is an element in a tree with level number ≤ 64.

Sample


Input 
 

Output 
 
4
1 2
2 1 2
1 5
2 3 2
Case #1: 1 2
Case #2: 2
Case #3: 3 2
Case #4: 5
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