def contains_word_hamlet(line):
    target = "pies"
    line_lower = line.lower() 
    line_length = len(line_lower)
    target_length = len(target)
    
    for i in range(line_length - target_length + 1):
        if line_lower[i:i + target_length] == target:
            return True
    return False

with open('/Users/jwieczor/Desktop/djfz-24_25-jezyki-1/TaskA02/simple.in', 'r') as file:
    for line in file:
        if contains_word_hamlet(line):
            print(line, end='')