Problem link: http://www.usaco.org/index.php?page=viewproblem2&cpid=893

I am trying to understand the result for test 2.in. In test 2, animal 2 and animal 3 have 3 common characteristics: **8, uvsuy, jjivs**

jgfdx **8** blnsa drube cehch **jjivs** ipzzr **uvsuy** relln kicqc

nyfdz **8** bynec **uvsuy** tokyx mpapq **jjivs** vihjo owkky oypay

According to the solution logic, the answer should be the number of common characteristics plus 1 which is 4 for these two animals.

Why the final answer in 2.out is 3?

Thanks