bot_area_of_triangle

print("Hi, I am Marvin, your personal bot.")

#asks and prints users name
user_name = input ("What is your name? ")
print("Welcome " + user_name )

#input a calculation type
command = input("How can I help? ")

#when input add does an addition calculation
if command == "add":
    print("let's add some numbers")
    input1 = input("Number 1> ")
    input2 = input("Number 2> ")
    number1 = int(input1)
    number2 = int(input2)
    result = number1 + number2
    output = str(result)
    print(input1 + " + " + input2 + " = " + output)

#when input subtract does a suntraction calculation
elif command == "subtract":
    print("let's subtract some numbers")
    input1 = input("Number 1> ")
    input2 = input("Number 2> ")
    number1 = int(input1)
    number2 = int(input2)
    result = number1 - number2
    output = str(result)
    print(input1 + " - " + input2 + " = " + output)

#when input multiply does a multiply calculation
elif command == "multiply":
    print("let's Multiply some numbers")
    input1 = input("Number 1> ")
    input2 = input("Number 2> ")
    number1 = int(input1)
    number2 = int(input2)
    result = number1 * number2
    output = str(result)
    print(input1 + " * " + input2 + " = " + output)

#when input subtract does asubtraction calculation
elif command == "subtract":
    print("let's subtract some numbers")
    input1 = input("Number 1> ")
    input2 = input("Number 2> ")
    number1 = int(input1)
    number2 = int(input2)
    result = number1 - number2
    output = str(result)
    print(input1 + " - " + input2 + " = " + output)

#when input triangle calculates the are of a right angled triangle
elif command == "triangle":
    print("let's find the area of a right angled triangle")
    input1 = input("Base of the triangle> ")
    input2 = input("Height of the triangle> ")
    number1 = int(input1)
    number2 = int(input2)
    result = (number1 * 0.5) * number2
    output = str(result)
    print("(" + input1 + " * 0.5) *" + input2 + " = " + output)
# if neither add or subtract outputs an apology
else:
    print ("sorry I can't do that yet!!!")