a | Phileas Fogg and Jean Passepartout | i | William Shakespeare |
b | Don Quixote and Sancho Panza | ii | Jules Verne |
c | Candide and Pangloss | iii | Miguel de Cervantes |
d | Dogberry and Verges | iv | Voltaire |
In the following figure, four overlapping shapes (rectangle, triangle, circle, and hexagon) are given. The sum of the numbers which belong to only two overlapping shapes is ________