You are given two integers N and K. You have to find the total number ofstrings of length N, which satisfy the following conditions:1. String only contains lowercase english characters.2. No K consecutive characters of the string are same.Return the answer by taking modulo with 1e9 7.Example 1:Input:N = 2, K = 2Output:650Explanation:Total number of possible strings with 2 characters is 26*26 inwhich 26 strings have 2 consecutive characterslike (aa,bb...). Therefore the answer is 26*26-26 = 650.E
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