传统题 1000ms 256MiB

B - 180°

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B - 180°

Score : $200$ points

Problem Statement

You are given a string $S$ consisting of 0, 1, 6, 8, and 9.

Rotate $S$ $180$ degrees and print the result. In other words, apply the following operations on $S$ and print the resulting string:

  • Reverse $S$.
  • Replace each 0 with a 0, each 1 with a 1, each 6 with a 9, each 8 with an 8, and each 9 with a 6.

Constraints

  • $1 \leq |S| \leq 10^5$
  • $S$ consists of 0, 1, 6, 8, and 9.

Input

Input is given from Standard Input in the following format:

SS

Output

Print the result of rotating $S$ $180$ degrees.


0601889
6881090

Rotating 0601889 $180$ degrees results in 6881090.


86910
01698

01010
01010

$S$ may remain the same.

2025寒假ATC码力训练营第十三次练习

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开始于
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