When two natural numbers are divided, the quotient is 4 and the remainder is 1. If the sum of the remainder, divisor, quotient, and remainder is 56, what is the dividend equal to?
两个自然数相除，商是4，余数是1．如果被余数、除数、商以及余数的和是56，那么被除数等于多少？
<gadget id="calculator">56 - 1 - 4 - 1</gadget>
<output>50</output>

<gadget id="calculator">4 + 1</gadget>
<output>5</output>

<gadget id="calculator">50 / 5</gadget>
<output>10</output>

<gadget id="calculator">56 - 10 - 4 - 1</gadget>
<output>41</output>

<result>41</result>