CF1335D.Anti-Sudoku
普及/提高-
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题目描述
You are given a correct solution of the sudoku puzzle. If you don't know what is the sudoku, you can read about it here.
The picture showing the correct sudoku solution:
Blocks are bordered with bold black color.
Your task is to change at most 9 elements of this field (i.e. choose some 1≤i,j≤9 and change the number at the position (i,j) to any other number in range [1;9] ) to make it anti-sudoku. The anti-sudoku is the 9×9 field, in which:
- Any number in this field is in range [1;9] ;
- each row contains at least two equal elements;
- each column contains at least two equal elements;
- each 3×3 block (you can read what is the block in the link above) contains at least two equal elements.
It is guaranteed that the answer exists.
You have to answer t independent test cases.
输入格式
The first line of the input contains one integer t ( 1≤t≤104 ) — the number of test cases. Then t test cases follow.
Each test case consists of 9 lines, each line consists of 9 characters from 1 to 9 without any whitespaces — the correct solution of the sudoku puzzle.
输出格式
For each test case, print the answer — the initial field with at most 9 changed elements so that the obtained field is anti-sudoku. If there are several solutions, you can print any. It is guaranteed that the answer exists.
输入输出样例
输入#1
1 154873296 386592714 729641835 863725149 975314628 412968357 631457982 598236471 247189563
输出#1
154873396 336592714 729645835 863725145 979314628 412958357 631457992 998236471 247789563