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Recursionhard
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For the Fibonacci sequence F1=1,F2=1F_1 = 1, F_2 = 1F1​=1,F2​=1, the sequence modulo 5 repeats with period (Pisano period) π(5)=20\pi(5) = 20π(5)=20. Which of the following is F103(mod5)F_{103} \pmod{5}F103​(mod5)?