Lab4x_Plus_Number

def setup():
  n = int(input())
  calculate(n)
def calculate(n):
   i=1
   sums=0
   while(i<=n): 
      print("i = ",i)
      sums=sums+i
      i=i+1
   print("1+2+...+N,N = ",n)
   print("The result is = ",sums)
setup()