BigDecimal a = new BigDecimal(fibo(1000));
        BigDecimal b = new BigDecimal(fibo(10));
        System.out.println(a);
        BigDecimal x = a.divide(b, 20, RoundingMode.CEILING);
        System.out.println(x);
    }

    static long fib(int n) {
        int a = 1, b = 1, c = 0;
        for (int i = 3; i <= n; i++) {
            c = a + b;
            a = b + 1;
            b = c;
        }
        return a;
    }

    static BigInteger fibo(int n) {
        BigInteger a = BigInteger.ONE, b = BigInteger.ONE, c = BigInteger.ZERO;
        for (int i = 3; i <= n; i++) {
            c = a.add(b);
            a = b.add(BigInteger.ONE);
            b = c;
        }
        return a;
    }