#### Smallest Interval in 2D Array

You are given a two dimensional array of integers as an argument. Return the smallest interval found across a single column.

### Requirements

- Must return an array of two integers

#### Example #1

```
solve([
[1, 1000, 20],
[50, 1001, 60],
[100, 1002, 80],
])
> [1000, 1002]
```

*Column 1 range is \[1,100], column 2 range is \[1000,1002] and column 3 range is \[20,80].**We return \[1000,1002] which contains the smallest interval of the three.*

#### Example #1

```
solve([
[1, 1000, 10],
[50, 1005, 20],
[100, 2000, 30],
])
> [10, 30]
```

*Column 1 range is \[1,100], column 2 range is \[1000,2000] and column 3 range is \[10,30].**We return \[10,30] which contains the smallest interval of the three.*