Calculation: (1996*96+1997*97+1996+1997-1900)/3994.
计算：(1996*96+1997*97+1996+1997-1900)/3994．
<gadget id="calculator">1_996 * 96</gadget>
<output>191_616</output>

<gadget id="calculator">1_997 * 97</gadget>
<output>193_709</output>

<gadget id="calculator">1_997 - 1_900</gadget>
<output>97</output>

<gadget id="calculator">191_616 + 193_709 + 1_996 + 97</gadget>
<output>387_418</output>

<gadget id="calculator">387_418 / 3_994</gadget>
<output>97</output>

<result>97</result>