from math import sqrt
x1 = int(input())
x2 = int(input())
x3 = int(input())
y1 = int(input())
y2 = int(input())
y3 = int(input())
d(AB) = sqrt((x2-x1)**2+(y2-y1)**2)
d(BC) = sqrt((x3-x2)**2+(y3-y2)**2)
d(CA) = sqrt((x1-x3)**2+(y1-y3)**2)
print("{:.3}".format(dAB))
print("{:.3}".format(dBC))
print("{:.3}".format(dCA))