Challenge: Last Digit of the Sum of Fibonacci Numbers’ Squares

Problem

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Last Digit of the Sum of the Squares of Fibonacci Numbers Problem

Compute the last digit of $F^{2}_{0} + F^{2}_{1} + \cdot\cdot\cdot + F^{2}_{n}$.

Input: An integer $n$.

Output: The last digit of $F^{2}_{0} + F^{2}_{1} + \cdot\cdot\cdot + F^{2}_{n}$.

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