Among the notebooks Eunji had, she gave half of the remaining 8 to her younger sister, and there were 5 left. How many notebooks did Eunji have at first?
5 2 [OP_MUL] 8 [OP_ADD]
var_a = 5
var_b = 2
var_c = var_a * var_b
var_d = 8
var_e = var_c + var_d
print(int(var_e))