After a cylindrical steel with a length of 9 decimeters is cut into two sections, the surface area increases by 100.48 square centimeters compared to the original one. What is the original surface area of this round steel in square centimeters?
把一根长9分米的圆柱形钢材，截成两段后，表面积比原来增加了100.48平方厘米，这根圆住形的钢材原来的表面积是多少平方厘米？
<gadget id="calculator">100.48 / 2</gadget>
<output>50.24</output>

<gadget id="calculator">50.24 * 2</gadget>
<output>100.48</output>

<gadget id="calculator">3.14 * 4 * 2 * 9 * 10</gadget>
<output>2_260.8</output>

<gadget id="calculator">100.48 + 2_260.8</gadget>
<output>2_361.28</output>

<result>2_361.28</result>