Yanshou Central Primary School donated 1,234 yuan for Sichuan earthquake relief, 136 yuan for the first grade, 235 yuan for the second grade, and the rest was donated by other grades. How much did the other grades donate?
延寿中心小学为四川抗震救灾捐款1234元，一年级捐了136元，二年级捐了235元，剩下的是其它几个年级捐的，其余几个年级捐了多少元？
<gadget id="calculator">136 + 235</gadget>
<output>371</output>

<gadget id="calculator">1_234 - 371</gadget>
<output>863</output>

<result>863</result>