Skynet simple calculator

print("Hi, I am Skynet, your AI program.")
users_name=input("Enter your name please: ")
print("Welcome " + users_name + "!")
print("Let's start out with some simple Maths")
print("Lets add two numbers")
input1 = input("Input first number: ")
input2 = input("Input 2nd number: ")
number1 = int(input1)
number2 = int(input2)
result = number1 + number2
#print(result)
total=str(result)
print(input1 + "+" + input2 + "=" + total)

print("Lets add a thrid number to the result")
input3 = input("Input 3rd number: ")
number3 = int(input3)
third_number_result = result + number3
third_number_total = str(third_number_result)
print("The addition of the third number " + input3 + " to the previous result " + total + " is equal to " + third_number_total)

print("I will also subtract all three numbers in the order you gave me")
sub = number1 - number2 - number3
sub_total=str(sub)
print("The subtraction result of the three numbers is " + sub_total)