n = int(input("Enter n: "))

i = n

# An INFINITE LOOP
#while i <= n + 1000:
#    print(i)

# A Non-infinite loop
while i <= n + 1000:
    # The loop body.  Only print even numbers
    if i % 2 == 0:
        print(i)

    # Get ready for the next iteration
    i += 1       # An AUGMENTED ASSIGNMENT OPERATOR
                 # Shorthand for i = i + 1