Робот плохо запрограммирован

import re
str = '2 3.5 5.0 7 29 357 42 4 333 3.0 стоп'
print(list(map(lambda x: int(float(x)),filter(lambda x: re.search('^[2-5](\.0)?$',x),str.split()[:-1]))))

def grade_filter():
    """
    Filters the grades based on a given threshold.
 
    Parameters:
    grade (Any): grade (integers or floats or 'stop').
    threshold (list): The threshold value.
 
    Returns:
    list: A list of grades that are above the threshold.
    """
    threshold = [2, 3, 4, 5]
    grade_list = []
    while True:
        try:
            grade = float(input("Enter a grade (or type 'stop' to finish): "))
            if grade in threshold:
                grade_list.append(int(grade))
        except ValueError:
            break
    return grade_list
 
 
if __name__ == "__main__":
    grades = grade_filter()
    print("Filtered grades:", grades)

estimation = [2, 3.5, 5.0, 7, 29, 357, 42, 4, 333, 3.0, 'стоп']
print([int(_) for _ in estimation if _!='стоп' and 1<_<6 and _%1==0])

print(list(map(int, filter(lambda x : 1 <= x <=5 and x%1== 0, map(float, iter(input, 'стоп'))))))

result = [
    # For each filtered list of even numbers:
    # 1. Create a list of squares using the walrus operator to store it in 'squared'
    # 2. Unpack the squares list with * operator
    # 3. Add the sum of the original numbers at the end
    [*(squared := [int(i) ** 2 for i in nums]), sum(int(i) for i in nums)]
    
    # This part generates 3 lists by:
    # 1. Prompting user for input 3 times (range(3))
    # 2. Splitting each input by commas
    # 3. Filtering to keep only even numbers
    for nums in [[i for i in input(f"Enter list {_}: ").split(",") if int(i) % 2 == 0] for _ in range(3)]
    
    # Only process non-empty lists
    if nums
]