# CF1108A Two distinct points

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## 题目描述

给定你数轴上的两条线段 $[l_1, r_1],[l_2, r_2]$（可能相交，重叠或重合）。你需要找到两个整数 $a,b$ 满足 $l_1 \leq a \leq r_1, l_2 \leq b \leq r_2$，且 $a\neq b$。你需要回答 $q$ 个询问，可能存在多种答案，输出任意一个即可。

## 输入输出格式

### 输入格式：

第一行输入一个整数 $q (1\leq q \leq 500)$，表示询问数量。 接下来 $q$ 行，每行有四个整数 $l_{1_i}, r_{1_i},l_{2_i}, r_{2_i}(1\leq l_{1_i},r_{1_i},l_{2_i},r_{2_i}\leq 10^9,l_{1_i} < r_{1_i},l_{2_i} < r_{2_i})$，表示第 $i$ 个询问的两条线段。

### 输出格式：

输出 $2q$ 个整数，每行两个整数 $a_i,b_i$ 表示第 $i$ 个询问的答案，且满足要求 $l_{1_i} \leq a \leq r_{1_i}, l_{2_i} \leq b \leq r_{2_i},a_i\neq b_i$

## 题目描述

You are given two segments $[l_1; r_1]$ and $[l_2; r_2]$ on the $x$ -axis. It is guaranteed that $l_1 < r_1$ and $l_2 < r_2$ . Segments may intersect, overlap or even coincide with each other.

The example of two segments on the $x$ -axis.Your problem is to find two integers $a$ and $b$ such that $l_1 \le a \le r_1$ , $l_2 \le b \le r_2$ and $a \ne b$ . In other words, you have to choose two distinct integer points in such a way that the first point belongs to the segment $[l_1; r_1]$ and the second one belongs to the segment $[l_2; r_2]$ .

It is guaranteed that the answer exists. If there are multiple answers, you can print any of them.

You have to answer $q$ independent queries.

## 输入输出格式

输入格式：

The first line of the input contains one integer $q$ ( $1 \le q \le 500$ ) — the number of queries.

Each of the next $q$ lines contains four integers $l_{1_i}, r_{1_i}, l_{2_i}$ and $r_{2_i}$ ( $1 \le l_{1_i}, r_{1_i}, l_{2_i}, r_{2_i} \le 10^9, l_{1_i} < r_{1_i}, l_{2_i} < r_{2_i}$ ) — the ends of the segments in the $i$ -th query.

输出格式：

Print $2q$ integers. For the $i$ -th query print two integers $a_i$ and $b_i$ — such numbers that $l_{1_i} \le a_i \le r_{1_i}$ , $l_{2_i} \le b_i \le r_{2_i}$ and $a_i \ne b_i$ . Queries are numbered in order of the input.

It is guaranteed that the answer exists. If there are multiple answers, you can print any.

## 输入输出样例

输入样例#1： 复制
5
1 2 1 2
2 6 3 4
2 4 1 3
1 2 1 3
1 4 5 8

输出样例#1： 复制
2 1
3 4
3 2
1 2
3 7

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