Every one once played the game called Mine Sweeping, here I change the rule. You are given an n*m map, every element is a '*' representing a mine, or a '.' representing any other thing. If I ask you what's the total number of mines around (i, j), you should check (i, j)'s up, down, left, right and also itself (if overstep the boundary, ignore it), if that position is a '*', you should add one to the total number of (i, j), and here I call the number Mine Number. For example, if the map is "..**.. ", we can get the Mine Number as "012210" easily, but here is the question, if I give you the Mine Number, can you tell me the original map?

The input consists of multiple test cases.
The first line contains a number T, representing the number of test cases.
Then T lines follow. For each case, the first line contains two numbers n and m (1<=n, m<=20).representing the lines and rows. Then following n lines, each line contain m numbers each number represents the Mine Number.

For each case, please print the case number (beginning with 1) and the original map which you reverted. The data guarantee there is only one result.

2
7 11
10010100101
21223221222
32354532323
32355532323
31235321333
21022201333
10001000111
5 6
001110
013431
014541
013431
001110

Case 1:
...........
*..*.*..*.*
*.*****.*.*
*.*****.*.*
*..***..*.*
*...*...***
...........
Case 2:
......
..***.
..***.
..***.
......