I have developed a program with which I generate a list in each round of a total of 5 rounds. I add these lists to a list of lists called my_list_tot. The code is as follows:

```
import random
mi_lista_tot=[]
for round in range(5):
mi_lista=[]
mi_lista_tot.append(mi_lista)
a1=[random.randrange(2) for i in range(8)]
a2=[random.randrange(2) for i in range(8)]
a3=[random.randrange(2) for i in range(8)]
for n in range(len(a1)):
mi_lista.append(a1[n] + a2[n] + a3[n])
print mi_lista_tot
```

In the current output, what I am generating is a list of lists of the following type:

```
[[2, 2, 1, 2, 2, 2, 2, 2], [2, 2, 1, 0, 1, 2, 0, 3], [2, 1, 2, 0, 1, 1, 3, 3], [2, 1, 2, 2, 1, 2, 2, 1], [1, 1, 2, 0, 0, 0, 0, 2]]
```

However, I would like my_list_tot to generate a summation list of the values in each index. In this case:

```
[9, 7, 8, 6, 5, 7, 7, 11]
```

It's what I can not do. I appreciate comments.