# Use for loop to add numbers
for i in range(start_num, end_num+1):
num_sum += i
# We need to define the start_num, end_num, and num_sum variables before using the for loop.
start_num = 1
end_num = 10
num_sum = 0
# Using the for loop to iterate through the range of numbers and add them to the num_sum variable.
# The range() function generates a sequence of numbers from start_num to end_num+1.
for i in range(start_num, end_num+1):
num_sum += i
# Now we can print the final sum of the numbers.
print("The sum of the numbers from", start_num, "to", end_num, "is:", num_sum)