sum

[dansht]

i write this ode :

a = [1,2,3]
b = [4,5,6]
ab=[]
for i in range(0, len(a)) : 
    ab.append(a[i]*b[i])
print(ab)

​
and get :

Output:
[4, 10, 18]

now i trying to add 4+10+18 but dont know how to do it
please help