prime_numbers = {2, 3, 5, 7}
# add 11 to prime_numbers
prime_numbers.add(11)
print(prime_numbers)
#if the element is already in the set, it won't add it
# Output: {2, 3, 5, 7, 11}
a = int(input())
b = int(input())
s = a+b
print(S)
age += 1
1 + 1 # 2
a = 1
b = 2
a + b # 3
a = 6
b = 12
c = a + b
#That is how you can add two numbers or variables
#to add 2 digits
print("enter 2 numbers")
a =int(input("enter 1 st number"))
b =int(input("enter 2nd number"))
c = a+b
print ("here is your answer",c)