I'm trying to move the second value in a list to the third value in a list for each nested list. I tried the below, but it's not working as expected.

**Code**

```
List = [['a','b','c','d'],['a','b','c','d'],['a','b','c','d']]
print(List)
col_out = [List.pop(1) for col in List]
col_in = [List.insert(2,List) for col in col_out]
print(List)

```

**Result**

```
[['a', 'b', 'c', 'd'], ['a', 'b', 'c', 'd'], ['a', 'b', 'c', 'd']]
[['a', 'b', 'c', 'd'], [...], [...]]

```

**Desired Result**

```
[['a', 'c', 'b', 'd'], ['a', 'c', 'b', 'd'], ['a', 'c', 'b', 'd']]

```

**UPDATE**

Based upon pynoobs comment, i came up with the following. But i'm still not there. Why is 'c' printing?

**Code**

```
List = [['a','b','c','d'],['a','b','c','d'],['a','b','c','d']]
col_out = [col.pop(1) for col in List for i in col]
print(col_out)

```

**Result**

```
['b', 'c', 'b', 'c', 'b', 'c']

```