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#
#
from math import sqrt

def distance(x1, y1, x2, y2):
    return sqrt((x2 - x1) ** 2 + (y2 - y1) ** 2)

def inputpoint(prompt):
    return float(input("Please enter the co-ordinate for" + prompt))

x1 = inputpoint("x1> ")
y1 = inputpoint("y1> ")
x2 = inputpoint("x2> ")
y2 = inputpoint("y2> ")
x3 = inputpoint("x3> ")
y3 = inputpoint("y3> ")

print(x1, y1, x2, y2, x3, y3)

# side lengths
side1length = distance(x1, y1, x2, y2)
side2length = distance(x2, y2, x3, y3)
side3length = distance(x3, y3, x1, y1)

# add to get perimeter and print it
perimeter = side1length + side2length + side3length
print("Perimeter:", perimeter)