# Calvin goes to the local "7-11" store!

Calvin goes into the local "7-11" store and buys four items. The bill totals $$7.11$$ . He notices that the product of the four prices is also exactly $$7.11$$ .

If the ascending order of the prices of the four items in dollars is $$A, B, C, D$$ , and then, if the value of $$\dfrac{D}{B} + \dfrac{C}{A}$$ can be expressed as $$\dfrac{M}{N}$$ for positive coprime integers $$(M,N)$$. Submit the value of $$M+N$$ as your answer.

Note : The four numbers $$(A,B,C,D)$$ have at most two places of decimals.

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