'''
Program1: Write a program to accept a number from a user and
calculate the sum of all numbers from 1 to a given number.

• Expected run of this program looks like the following:
Enter a number: 10
Sum of numbers to 10 is 55
'''

Sum=0
number =int(input("Enter a number: "))
for x in range(number+1):
  Sum=Sum+x
print("Sum of numbers to ",number,"is ",Sum)