Xiaojun and Xiaoming start from the school and the Children's Palace and walk toward each other. Xiaojun walks 120 meters per minute, and Xiaoming walks 100 meters per minute. After 10 minutes, the distance between the two is 350 meters. How many meters is the distance between the school and the Children's Palace?
小军和小明分别从学校和少年宫出发相向而行，小军每分钟行120米，小明每分钟行100米，10分钟后两人还相距350米，学校和少年宫相距多少米？
<gadget id="calculator">120 + 100</gadget>
<output>220</output>

<gadget id="calculator">220 * 10</gadget>
<output>2_200</output>

<gadget id="calculator">2_200 + 350</gadget>
<output>2_550</output>

<result>2_550</result>