3※2=3+33=36, 2※4=2+22+222+2222=2468, 1※3=1+11+111=123, then 7※5=how much.
3※2=3+33=36,2※4=2+22+222+2222=2468,1※3=1+11+111=123那么7※5=多少．
<gadget id="calculator">7 + 77 + 777 + 7_777 + 77_777</gadget>
<output>86_415</output>

<result>86_415</result>