Get Day 9 problem ↗ & input ↗
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0-0- - - -1-1-1- - - -2- - - -3-3-3- -4-4- -5-5-5-5- -6-6-6-6- -7-7-7- -8-8-8-8-9-9
0-0-9-9-8-1-1-1-8-8-8-2-7-7-7-3-3-3-6-4-4-6-5-5-5-5-6-6
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