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The exam will be held tomorrow. I hope you can help me solve a problem about permutation and combination in mathematics.
What does (1) c 412c48c44/a33a3except mean?

A33 means that three teams have problems.

C4 12C48C44 calculates A33 kinds of sub-item methods when calculating the shift.

(2) What does C33C19C48C44/A22A22 mean?

This is to divide the strong team first, and then divide the other two teams.

The two teams have also calculated it 22 times.

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