Create a reverse checkbox matrix with '69'.
Where the size is the input and output will be a square checkbox matrix.
If input is 4 then output will be
[ 0 69 0 69
69 0 69 0
0 69 0 69
69 0 69 0]
Back to basics 5 - Clipboard
Test if two numbers have the same digits
Sum the Digits of a Number
Diagonal & Anti-Diagonal Matrix: Easy
Count decimal digits of a number
THE TOUGHEST PROBLEM????
~~~~~~~ WAVE ~~~~~~~~~
ZigZag matrix with reflected format
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