Goal
story
The first numbers were finally born in the universe.
That is 1.
In order to keep the balance of the dice galaxy, 6 must be arranged according to the dice law.
rule
Net of cube is #, 1 or 6.
The blank value is ..
There is always one 1 in each net.
When the net is made into a cube, 6 is placed on the opposite side of 1.
There may be multiple nets, each nets is not touch.
The trouble is when 6 is in the wrong place. In that case, fix 6 to the correct place.
Finally, display net that balanced 1 and 6.
Input
Line 1: An integer w width
Line 2: An integer h height
Next h lines: string line length w
Output
h lines: string outline set 6
Constraints
4 ≤ w ≤ 15
2 ≤ h ≤ 10
4 ≤ line length ≤ 15
