def distanceformula():
    x = int(input("X1: "))
    y = int(input("Y1: "))
    xx = int(input("X2: "))
    yy = int(input("Y2: "))
    d = (((x-xx)**2)+((y-yy)**2))**0.5
    print("The distance between points (",x,",",y,") and (",xx,",",yy,") is: ", d)