def is_numeric(s):
    for char in s:
        if char < '0' or char > '9': 
            return False
    return True

def find_lines_with_date_from_file(filename):
    result = []

    with open(filename, 'r', encoding='utf-8') as file:
        lines = file.readlines()

    for line in lines:
        i = 0
        while i < len(line):
            if i + 3 < len(line):
                year_candidate = line[i:i+4]
                if is_numeric(year_candidate):
                    year = int(year_candidate)
                    if 1900 <= year <= 1999:
                        if i + 6 < len(line) and line[i+4] == ' ' and line[i+5:i+7] == 'r.':
                            result.append(line.strip()) 
                            break  
            i += 1  

    return result

filename = 'TaskA03/simple.in'  
output = find_lines_with_date_from_file(filename)

for line in output:
    print(line)