완전제곱수

public class SQR{

    public static void main(String[] args){

        sqr(60, 100);
    }

    public static void sqr(double min, double max){

        int low = (int)Math.ceil(Math.sqrt(min));
        int high = (int)Math.floor(Math.sqrt(max));

        int sum = 0;

        for(int i = low; i <= high; i++){
            sum += i*i;
        }

        System.out.println(sum);
        System.out.println(low * low);
    }
}