from math import sqrt
x1 = int (input())
y1 = int (input())
x2 = int (input())
y2 = int (input())
x3 = int (input())
y3 = int (input())
dAB = sqrt((x2-x1)*(x2-x1)+(y2-y1)*(y2-y1))
dAC = sqrt((x3-x1)*(x3-x1)+(y3-y1)*(y3-y1))
dBC = sqrt((x3-x2)*(x3-x2)+(y3-y2)*(y3-y2))
print ("{:.3}".format(dAB))
print ("{:.3}".format(dAC))
print
("{:.3}".format(dBC))