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+import java.util.Scanner;%0A%0Apublic class Main %7B%0A    public static long fibonacci (int n) %7B%0A        if ((n == 0) %7C%7C (n == 1)) %7B%0A            return 1;%0A        %7D%0A%0A        return fibonacci(n - 1) + fibonacci(n - 2);%0A    %7D%0A%0A    public static void main(String%5B%5D args) %7B%0A        Scanner scanner = new Scanner(System.in);%0A        int n = Integer.parseInt(scanner.nextLine());%0A        System.out.println(fibonacci(n));%0A    %7D%0A%7D%0A

Create 12.Fibonacci.java