**Problem A: Biutiful Number**

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sample input | sample output**Problem B: Raon and Ice Cream**

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sample input | sample output**Problem C: Copy Duck**

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sample input | sample output**Problem D: Parallel Lines**

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sample input | sample output**Problem E: Dependency Hell**

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sample input | sample output**Problem F: Ocarth**

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sample input | sample output**Problem G: Problem on Array**

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sample input | sample output**Problem H: Captain Kaban**

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sample input | sample output**Problem I: Irrigation**

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sample input | sample output**Problem J: Raon and Voting**

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sample input | sample output**Problem K: Echo Signal**

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