n = int(input("Enter THe no:"))
sum=0
i=1
while i<=n:
    sum+=i
    i+=1
print("The sum of ",n," is",sum)
##############################
name=""
pwd=""
while (name!="mahesh") or (pwd!= "hello") :
   name= input("Enter the corerct name:")
   pwd= input("Enter Pwd:")
print("Thnaks for Correct name")
