Ans is 76.
i=4 initially
p= i++ * i++
now it is post increment operator , so it will use i first then increment.hence,
p= 4 * i ++ // after using 4 , value of i ,that is 4 will be incremented to 5
p=4* 5 // after using 5 ,value of i that is 5 will be incremented to 6
so, p=20
now q= ++i * ++i
now it is pre increment operator , so it will increment first then use value ..hence,
q= 7 (now i value 6 will be first incremented first then used) *( increment i value again so i becomes 8 then use) 8
q=56
so final ans is p+q=20+56=76