The total number of pencils is between 550 and 600. If you count 3 sticks, there are 2 sticks, if you count 4 sticks, there are 3 sticks, and if you count 5 sticks, there are 4 sticks. Find the total number of pencils.
铅笔总数在550至600之间，3枝一数余2枝，4枝一数余3枝，5枝一数余4枝，求铅笔的总数．
<gadget id="calculator">600 - 1</gadget>
<output>599</output>

<result>599</result>