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It really isn't that hard but how would you ever know? “That sounds too complicated to me!” I could never do that, I'll stick to D.C.” ...

Explained Java Program for below Pattern 11 : 1 1 2 1 1 2 3 2 1 1 2 3 4 3 2 1 1 2 3 4 5 4 3 2 1 1 2 3 4 5 6 5 4 3 2 1 1 2 3 4 5 6 7 6 5 ...