Yuna went to the stationery store and bought a notebook with half of the money she took, and a pencil with half of the rest, and she had 800 won left. How much money did Yuna take with her in 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))