import java.math.BigDecimal;
import java.math.RoundingMode;

public class InfiniteDivFix
{
    public static void main(String[] args)
    {
        BigDecimal a = new BigDecimal("1");
        BigDecimal b = new BigDecimal("3");
        BigDecimal c;
        
        c = a.divide(b, 20, RoundingMode.HALF_UP);
        System.out.println(c);
    }
}