def intro():
    print("+----------------------+")
    print("|     Cubic Expand     |")
    print("|                      |")
    print("|       __             |")
    print("|   ___(o )>  quack!   |")
    print("|   \\ <_. )           |")
    print("|    `---'             |")
    print("|     by DuckieDai     |")
    print("| hiddenwordscanner.com|")
    print("+----------------------+")
    input("Press enter ")
    print("\n"*6)


intro()

r1=float(input("r1: "))
r2=float(input("r2: "))
r3=float(input("r3: "))

a=-(r1+r2+r3)
b=r1*r2+r1*r3+r2*r3
c=-(r1*r2*r3)

print()
print("Standard form:")
print("x^3")
print(a,"x^2")
print(b,"x")
print(c)

print()
print("DuckieDai says:")
print("done!")