Let \( N \) be a two-digit number such that \( N \equiv 3 \pmod{7} \) and \( N = 7k + 3 \) for some integer \( k \). Also, the sum of the digits of \( N \) is a multiple of 5. How many such numbers \( N \) are there? Let's think step by step and output the final answer within \boxed{}.
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