Each of P, Q, R, S, T, U and V has an exam on a different day of a week starting from Monday and ending on Sunday of the
same week. R has an exam on Wednesday. Exactly 3 people have an exam between R and U. V has an exam immediately
after S and Q has an exam immediately before S. Only 3 people have an exam between P and S. Who has an exam on
Monday?
AQ
BP
CV
DU