Describe an algorithm that counts the number of numbers with the digit 7 in the range from 1 to 1000.

# Initialize counter
count = 0

# Iterate over numbers from 1 to 1000 (inclusive)
for number in range(1, 1001):
    # Convert number to string for easy digit check
    number_str = str(number)

    # Check if the string contains the digit '7'
    if '7' in number_str:
        # Increment counter if '7' is found
        count += 1

# Result - number of numbers containing the digit 7 in the range
# print(count) # Output for debugging