(2) If only one card matches, such as the original sequence of boxes is 1 2 3 4, if only 1 matches, there are two situations: 1 3 4 2, 1 4 2 3. So there is only one match, which is 8/24; The cases where two numbers match are 1234 and 1243, so A42-* * has 12 cases, so it is impossible to have three matches, only 1 case has four matches. If none of them match, then there are three situations, and then the rest is calculated by yourself.