I want to perform this:

Read two integers from STDIN and print three lines where:

The first line contains the sum of the two numbers.
The second line contains the difference of the two numbers (first - second).
The third line contains the product of the two numbers.

Can someone help me on this?

Start slow and break it down

# Get your data from the user, use input
num_one = input("Please enter the first number: ")
num_two = input("Please enter the second number: ")

# Create the sum, diff, and product, casting as integer
sum = int(num_one) + int(num_two)
diff = int(num_one) - int(num_two)
product = int(num_one) * int(num_two)

# Print each output casting as a string since we can't concatenate a string to an integer
print("The sum is: "+str(sum))
print("The difference is: "+str(diff))
print("The product is: "+str(product))

Now you should also do some error checking here incase the user doesn't enter anything:

 # Get your data from the user, use input
num_one = input("Please enter the first number: ")
num_two = input("Please enter the second number: ")

if(num_one == "" or num_two == ""):
 print("You did not enter enter two numbers. Exiting...")
 exit
else:
 # Create the sum, diff, and product, casting as integer
 sum = int(num_one) + int(num_two)
 diff = int(num_one) - int(num_two)
 product = int(num_one) * int(num_two)

 # Print each output casting as a string since we can't concatenate a 
 string to an integer
 print("The sum is: "+str(sum))
 print("The difference is: "+str(diff))
 print("The product is: "+str(product))

Python 2.7

raw_input to read the input, int to convert string to integer, print to print the output

a = int(raw_input("numebr 1: "))
b = int(raw_input("numebr 2: "))
print a + b
print a - b
print a * b

Python 3.7

input to read the input, int to convert string to integer, print to print the output

a = int(input("numebr 1: "))
b = int(input("numebr 2: "))
print (a + b)
print (a - b)
print (a * b)