**Principal Diagonal** -- The principal diagonal in a matrix identifies those elements of the matrix running from North-West to South-East.
**Secondary Diagonal** -- the secondary diagonal of a matrix identifies those elements of the matrix running from North-East to South-West.
For example:
```
matrix:             [1, 2, 3]
                    [4, 5, 6]
                    [7, 8, 9]
principal diagonal: [1, 5, 9]
secondary diagonal: [3, 5, 7]
```
## Task
Your task is to find which diagonal is "larger": which diagonal has a bigger sum of their elements.
* If the principal diagonal is larger, return `"Principal Diagonal win!"`
* If the secondary diagonal is larger, return `"Secondary Diagonal win!"`
* If they are equal, return `"Draw!"`
**Note:** You will always receive matrices of the same dimension.
def diagonal(matrix):
    if sum(matrix[i][i] for i in range(len(matrix))) > sum(matrix[i][len(matrix)-1-i] for i in range(len(matrix))): return "Principal Diagonal win!"
    elif sum(matrix[i][i] for i in range(len(matrix))) < sum(matrix[i][len(matrix)-1-i] for i in range(len(matrix))): return "Secondary Diagonal win!"
    else: return "Draw!"
def diagonal(matrix):
    if sum(matrix[i][i] for i in range(len(matrix))) > sum(matrix[i][len(matrix)-1-i] for i in range(len(matrix))): return "Principal Diagonal win!"
    elif sum(matrix[i][i] for i in range(len(matrix))) < sum(matrix[i][len(matrix)-1-i] for i in range(len(matrix))): return "Secondary Diagonal win!"
    else: return "Draw!"