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If 3 + 3 = 30 --> (33+1) * 3 = 30
then 1 + 1 = 2 --> (1
1+1) * 1 = 2
then 2 + 2 = 10 --> (22+1)2 = 10
so ------>>> 4+4 = (44+1)4 = 68