You Believe are not, as i am working with Govt here in Saudi Arabia with more then 3000 Saudis in Building.
95% of Them Respect me as Pakistani.
They never mess with a Pakistani like this. they can do use of harsh words but far better treat with Pakistanis as compared to other SA nationalities.
If It is 47 in first place, i don't know the answer
but, If its 475 then there is good Sequence..
475 - 323=152/2= 76
857 - 591 = 266/2 = 133
642-274 = 368/2 = 184
184 in missing place