how to add N + 1 in for loop python code example

Example 1: how to add numbers in python using for loop

n = input("Enter Number to calculate sum")
n = int (n)
sum = 0
for num in range(0, n+1, 1):
    sum = sum+num
print("SUM of first ", n, "numbers is: ", sum )

Example 2: how to print a number at the end of a for loop in python

for i in range(1,4):
  if i == 3:
    print(i)