Yuna went to the stationery store. She bought a notebook with half of the money she took, and she spent half of the remaining money on a pencil. If the remaining money is 800 won, how much money did Yuna take at the beginning?
800 2 [OP_MUL] 2 [OP_MUL]
var_a = 800
var_b = 2
var_c = var_a * var_b
var_d = 2
var_e = var_c * var_d
print(int(var_e))