AtCoder Beginner Contest 112
C
Pyramid
AtCoder
⌀ 1147
原题
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Problem Statement

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In the Ancient Kingdom of Snuke, there was a pyramid to strengthen the authority of Takahashi, the president of AtCoder Inc. The pyramid had center coordinates $(C_X, C_Y)$ and height $H$. The altitude of coordinates $(X, Y)$ is $max(H - |X - C_X| - |Y - C_Y|, 0)$.

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Aoki, an explorer, conducted a survey to identify the center coordinates and height of this pyramid. As a result, he obtained the following information:

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  • $C_X, C_Y$ was integers between $0$ and $100$ (inclusive), and $H$ was an integer not less than $1$.
  • Additionally, he obtained $N$ pieces of information. The $i$-th of them is: "the altitude of point $(x_i, y_i)$ is $h_i$."
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This was enough to identify the center coordinates and the height of the pyramid. Find these values with the clues above.

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Constraints

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  • $N$ is an integer between $1$ and $100$ (inclusive).
  • $x_i$ and $y_i$ are integers between $0$ and $100$ (inclusive).
  • $h_i$ is an integer between $0$ and $10^9$ (inclusive).
  • The $N$ coordinates $(x_1, y_1), (x_2, y_2), (x_3, y_3), ..., (x_N, y_N)$ are all different.
  • The center coordinates and the height of the pyramid can be uniquely identified.
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Input

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Input is given from Standard Input in the following format:

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N
x_1 y_1 h_1
x_2 y_2 h_2
x_3 y_3 h_3
:
x_N y_N h_N

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Output

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Print values $C_X, C_Y$ and $H$ representing the center coordinates and the height of the pyramid in one line, with spaces in between.

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样例

Input #1
4
2 3 5
2 1 5
1 2 5
3 2 5
Output #1
2 2 6
In this case, the center coordinates and the height can be identified as $(2, 2)$ and $6$.
Input #2
2
0 0 100
1 1 98
Output #2
0 0 100
In this case, the center coordinates and the height can be identified as $(0, 0)$ and $100$. Note that $C_X$ and $C_Y$ are known to be integers between $0$ and $100$.
Input #3
3
99 1 191
100 1 192
99 0 192
Output #3
100 0 193
In this case, the center coordinates and the height can be identified as $(100, 0)$ and $193$.
题目信息
题号
abc112_c
时间限制
3 s
内存限制
1024 MB

题面与样例版权归 AtCoder 及出题人所有;中文翻译由 AI 生成(CI 管线),如有出入请以原文为准。