import math

# Calculate the distance between two points.
def distance(x1, y1, x2, y2):
    xdiff = x2 - x1
    ydiff = y2 - y1
    result = math.sqrt((xdiff * xdiff) + (ydiff * ydiff))
    return result

def distance2(x1, y1, x2, y2):
    xdiff = x2 - x1
    ydiff = y2 - y1
    result = ((xdiff ** 2) + (ydiff **2)) ** 0.5
    return result


def main():
    # Get two points from the user.
    print("Enter coordinates for the first point: ")
    x1 = int(input())
    y1 = int(input())
    print("Enter coordinates for the second point: ")
    x2 = int(input())
    y2 = int(input())

    # Call function to figure out distance.
    dist = distance(x1, y1, x2, y2)
    dist2 = distance2(x1, y1, x2, y2)

    # Print distance to screen.
    print("Distance between the points is: ", dist)
    print("Distance between the points is: ", dist2)