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Pitxbullxgirl
so there are 12 spaces right. In first blank u have a choice to fill any of the alphabet .(first twelve alphabets) and it goes down to just 1 letter in the last space. but do i just multiply them.

hope dis helps
12!
12!=12*11*10*9*8*7*6*5*4*3*2*1
=479001600