Team of Two

Your class recently got a maths assignment with $5$ questions. There are $N (\le 20)$ students in the class and **at most** $2$ people can collaborate. For each student, you know which problems they solved. Find out if there exists a team of two students who can together solve all problems. ### Input The first line of input will contain a single integer $T$, denoting the number of test cases. $T