For some fruits, if there are 5 boxes and 5 boxes, there will be 1 box left after counting; if there are 7 boxes and 7 boxes, there will be 1 box left after counting. How many boxes are there at least in this cart?
一些水果，5箱5箱的数，数完还剩1箱；如果7箱7箱的数，数完也还剩1箱．这车水果至少有多少箱？
<gadget id="calculator">5 * 7</gadget>
<output>35</output>

<gadget id="calculator">35 + 1</gadget>
<output>36</output>

<result>36</result>