# The perimeter of a triangle

Given the coordinates of 3 points

, you are asked to calculate the perimeter of the triangle formed by those points. The perimeter is the sum of all the sides of the triangle.The 3 lines of the input contain 3 coordinates - each

`x`

and `y`

component on a single line.The program should output a single line - the perimeter of the triangle formed by those coordinates.

Input | Output |

0 0
1 0
0 1 | 3.41421356237 |

## Tip

You can define a function to compute the distance between two coordinates.

#### Constraints

Time limit: 1 seconds

Memory limit: 512 MB

Output limit: 1 MB