A, B, and C go fishing together. They put the fish they caught in a fish basket, lay down and rested on the spot, and finally fell asleep. A wakes up first, divides the fish in the fish basket into 3 parts, finds that there is one more fish, throws the extra fish back into the river, and takes one part of the fish back home. B wakes up later, divides the existing fish in the fish basket into 3 parts on average, and finds that there is one more fish, throws the extra fish back into the river, and takes one of them back home. C finally woke up, and he divided the fish in the fish basket into 3 parts on average, and there was one more fish at this time. How many fish did these three people catch at least?
甲乙丙三人一起去钓鱼．他们将钓得的鱼放在一个鱼篓中，就在原地躺下休息，结果都睡着了．甲先醒来，他将鱼篓中的鱼平均分成3份，发现还多1条，就将多的这条鱼扔回河中，拿着其中的1份回家了．乙随后醒来，他将鱼篓中现有的鱼平均分成3份，发现还多1条，也将多的这条鱼扔回河中，拿着其中的1份回家了．丙最后醒来，他将鱼篓中的鱼平均分成3份，这时也多1条．这三个人至少钓到多少条鱼．
<gadget id="calculator">3 * 3</gadget>
<output>9</output>

<gadget id="calculator">9 + 1</gadget>
<output>10</output>

<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">3 * 5</gadget>
<output>15</output>

<gadget id="calculator">15 + 1</gadget>
<output>16</output>

<gadget id="calculator">16 / 2</gadget>
<output>8</output>

<gadget id="calculator">8 * 3</gadget>
<output>24</output>

<gadget id="calculator">24 + 1</gadget>
<output>25</output>

<result>25</result>