Jinwoo divided the cake into 3 equal pieces and ate one piece. Areum divided a cake of the same size into 12 equal pieces. How many pieces should she eat to eat the same amount as Jinwoo?
12 3 [OP_DIV]
var_a = 12
var_b = 3
var_c = var_a / var_b
print(int(var_c))