a = int(input("Enter the first side of the triangle: "))
b = int(input("Enter the second side of the triangle: "))
c = int(input("Enter the third side of the triangle: "))

if a + b > c and b + c > a and a + c > b:
    print("These numbers form the sides of a triangle.")
else:
    print("These numbers do not form the sides of a triangle.")