# Program to compute the sum of the first n numbers
# Matt Bishop, January 26, 2012
# for ECS 10 Winter 2012
def main():
# initialize variables
total = 0
# read how high we are to count
try:
n = int(input("Please enter a number: "))
except:
print("You need to enter a number")
return
# loop over the first n numbers,
# adding them as we go
for i in range(1,n+1):
total = total + i
# print out the total
print("The total of the first", n, "positive numbers is", total)
main()