task4

a_1=input("Enter coordinates of the center of the circle separated by a delimiter (e.g. 20.55 ; 50.1):")
a_1=a_1.replace(",",".")
a_1=a_1.split(";")
x_0=float(a_1[0])
y_0=float(a_1[1])

a_2=input("Enter radius of the circle (e.g. 20.5):")
a_2=a_2.replace(",",".")
r_0=float(a_2)

a_3=input("Enter cooredinates of random point separated by a delimiter (e.g. 10.5 ; 3) ")
a_3=a_3.replace(",",".")
a_3=a_3.split(";")
x_1=float(a_3[0])
y_1=float(a_3[1])

if ((x_1-x_0)**2+(y_1-y_0)**2-r_0**2) < 0:
    print("point is inside circle")
else:
    print("outside circle")