The lightest bird in the world is the hummingbird. A hummingbird weighs 2.1g, and a sparrow loses 1g, which is exactly 50 times that of the hummingbird. How many grams does this sparrow weigh?
世界上体重最轻的鸟是蜂鸟．一只蜂鸟重2.1g，一只麻雀的体重减少1g，刚好是这只蜂鸟的50倍．这只麻雀重多少克？
<gadget id="calculator">2.1 * 50</gadget>
<output>105</output>

<gadget id="calculator">105 + 1</gadget>
<output>106</output>

<result>106</result>