import re

def find_names_with_3_digit_area_code(file_path):
    # Define the regular expression pattern
    pattern = re.compile(r"(\w+)\s(\d{3}-\d{8})")
    
    # List to store names with 3-digit area code
    names_with_3_digit_area_code = []
    
    # Read the input file
    with open(file_path, 'r') as file:
        for line in file:
            match = pattern.match(line)
            if match:
                name = match.group(1)
                names_with_3_digit_area_code.append(name)
    
    return names_with_3_digit_area_code

# Example usage
file_path = 'input.txt'
names = find_names_with_3_digit_area_code(file_path)
print("Names with 3-digit area code phone numbers:", names)