Write a program to find the sum of the first n natural numbers, where the value of n is provided by the user.

 CODE :

# sumn.py 

# Write a program to find the sum of the first n natural numbers,

#where the value of n is provided by the user.

def main() : 

    sum=0

    n = int (input ("Please enter number: ") ) 

    for i in range(n+1) : 

        sum=sum+i

    print ("Sum of n Natural number is :",sum) 

main()

NOte : save this file as sumn.py

SCREENSHOT :