# save a constant as N1 # save a 2nd constant as N2 # add the two numbers and save as Sum N1 = 11 N2 = 22 Sum = N1 + N2 print ("The Sum is", Sum) # input a number from console and save it as N1 # input a 2nd number and save as N2 # add the two numbers and save as Sum N1 = input() N2 = input() Sum = N1 + N2 print ("The Sum is", Sum) # - an improved version # provide prompt string before inputing numbers as N1 and N2 # provide a formatting string to produce better output N1 = input("Enter the 1st Number (N1) ") N2 = input("Enter the 2nd Number (N2) ") print ("Ready to add the two numbers...") Sum = N1 + N2 print ("Done...") print ("The Sum is %d" % Sum)