import re

def _map_ikev2_vendor_capabilities(message_type, input_string):
    # List of acceptable message types
    valid_message_types = ['IKE_SA_INIT', 'IKE_AUTH']
    
    # Validate message type
    if message_type not in valid_message_types:
        raise ValueError(f"Invalid message type: {message_type}. Must be one of {valid_message_types}")
    
    # Mapping dictionary for IKE values with RFC references
    value_map = {
        # IKE_SA_INIT capabilities
        'FRAG_SUP': 'IKE Fragmentation',  # RFC 7383, Section 3
        'REDIR_SUP': 'Redirection',  # RFC 5685, Section 3
        'HASH_ALG': 'Hash Algorithms',  # RFC 7296, Section 3.3.2
        'NATD_S_IP': 'NAT-T (Source IP)',  # RFC 7296, Section 2.23
        'NATD_D_IP': 'NAT-T (Destination IP)',  # RFC 7296, Section 2.23
        'SIGN_HASH_ALGS': 'Signature Hash Algorithms',  # RFC 7296, Section 2.15
        'NON_FIRST_FRAGMENTS': 'Non-First IKE Fragments',  # RFC 7383, Section 3
        'CHILDLESS_IKEV2_SUP': 'Childless IKEv2',  # RFC 6023, Section 3
        'INTERMEDIATE': 'Intermediate Exchange',  # RFC 9242, Section 3
        'COOKIE': 'Cookie-Based DoS Protection',  # RFC 7296, Section 2.6
        # IKE_AUTH capabilities
        'ESP_TFC_PAD_N': 'ESPv3 TFC Padding Not Supported',  # RFC 7296, Section 3.3.1
        'MOBIKE_SUP': 'MOBIKE',  # RFC 4555, Section 3
        'MULT_AUTH': 'Multiple Auth',  # RFC 4739, Section 3
        'EAP_ONLY': 'EAP-Only Auth',  # RFC 5998, Section 3
        'MSG_ID_SYN_SUP': 'Message ID Sync',  # RFC 6311, Section 3
        'IPCOMP_SUPPORTED': 'IP Payload Compression Support',  # RFC 7296, Section 3.3.2
        'ADD_4_ADDR': 'Additional IPv4 Addresses',  # RFC 4555, Section 3.2
        'ADD_6_ADDR': 'Additional IPv6 Addresses',  # RFC 4555, Section 3.2
        'INIT_CONTACT': 'Initial Contact',  # RFC 7296, Section 3.16
        'HTTP_CERT_LOOKUP_SUP': 'HTTP Certificate Lookup',  # RFC 7296, Section 3.7
        'REKEY_SA': 'SA Rekeying'  # RFC 7296, Section 3.16
    }
    
    # Notifications valid for each message type
    ike_sa_init_valid = {
        'FRAG_SUP', 'REDIR_SUP', 'HASH_ALG', 'NATD_S_IP', 'NATD_D_IP',
        'SIGN_HASH_ALGS', 'NON_FIRST_FRAGMENTS', 'CHILDLESS_IKEV2_SUP',
        'INTERMEDIATE', 'COOKIE'
    }
    ike_auth_valid = {
        'ESP_TFC_PAD_N', 'MOBIKE_SUP', 'MULT_AUTH', 'EAP_ONLY', 'MSG_ID_SYN_SUP',
        'IPCOMP_SUPPORTED', 'ADD_4_ADDR', 'ADD_6_ADDR', 'INIT_CONTACT',
        'HTTP_CERT_LOOKUP_SUP', 'REKEY_SA'
    }
    
    # Select valid notifications based on message type
    valid_notifications = ike_sa_init_valid if message_type == 'IKE_SA_INIT' else ike_auth_valid
    
    # Regex to capture N(...) patterns
    pattern = r'N\([^)]+\)'
    matches = re.findall(pattern, input_string)
    
    # Parse matches and create result list
    result = []
    for match in matches:
        key = match[2:-1]  # Extract content inside N(...)
        if key in valid_notifications and key in value_map:
            result.append(value_map[key])
        else:
            # Log unrecognized notifications for debugging
            print(f"Warning: Unrecognized or invalid notification for {message_type}: {key}")
    
    return ', '.join(result) if result else 'None'

# Example usage
ike_sa_init_string = '2025-07-18 20:16:22.839 15[ENC] <4> parsed IKE_SA_INIT request 0 [ SA KE No N(NATD_S_IP) N(NATD_D_IP) N(FRAG_SUP) N(HASH_ALG) N(REDIR_SUP) N(SIGN_HASH_ALGS) N(NON_FIRST_FRAGMENTS) N(CHILDLESS_IKEV2_SUP) N(INTERMEDIATE) N(COOKIE) ]'
ike_auth_string = '2025-07-18 20:16:22.898 07[ENC] <4> parsed IKE_AUTH request 1 [ IDi N(INIT_CONTACT) IDr AUTH N(ESP_TFC_PAD_N) SA TSi TSr N(MOBIKE_SUP) N(ADD_4_ADDR) N(MULT_AUTH) N(EAP_ONLY) N(MSG_ID_SYN_SUP) N(IPCOMP_SUPPORTED) N(ADD_6_ADDR) N(HTTP_CERT_LOOKUP_SUP) N(REKEY_SA) ]'

# Test with IKE_SA_INIT
print("IKE_SA_INIT Results:")
print(_map_ikev2_vendor_capabilities("IKE_SA_INIT", ike_sa_init_string))

# Test with IKE_AUTH
print("\nIKE_AUTH Results:")
print(_map_ikev2_vendor_capabilities("IKE_AUTH", ike_auth_string))

# Python code to demonstrate
# method to remove i'th character
# Naive Method

# Initializing String
test_str = "CodeCatch"

# Printing original string
print ("The original string is : " + test_str)

# Removing char at pos 3
# using loop
new_str = ""

for i in range(len(test_str)):
	if i != 2:
		new_str = new_str + test_str[i]

# Printing string after removal
print ("The string after removal of i'th character : " + new_str)

def generate_floyds_triangle(num_rows):
    triangle = []
    number = 1
    for row in range(num_rows):
        current_row = []
        for _ in range(row + 1):
            current_row.append(number)
            number += 1
        triangle.append(current_row)
    return triangle


def display_floyds_triangle(triangle):
    for row in triangle:
        for number in row:
            print(number, end=" ")
        print()


# Prompt the user for the number of rows
num_rows = int(input("Enter the number of rows for Floyd's Triangle: "))

# Generate Floyd's Triangle
floyds_triangle = generate_floyds_triangle(num_rows)

# Display Floyd's Triangle
display_floyds_triangle(floyds_triangle)

bytes_data = b'Hello, World!'
string_data = bytes_data.decode('utf-8')
print("String:", string_data)

""" Calculator
----------------------------------------
"""
def addition ():
    print("Addition")
    n = float(input("Enter the number: "))
    t = 0 //Total number enter
    ans = 0
    while n != 0:
        ans = ans + n
        t+=1
        n = float(input("Enter another number (0 to calculate): "))
    return [ans,t]
def subtraction ():
    print("Subtraction");
    n = float(input("Enter the number: "))
    t = 0 //Total number enter
    sum = 0
    while n != 0:
        ans = ans - n
        t+=1
        n = float(input("Enter another number (0 to calculate): "))
    return [ans,t]
def multiplication ():
    print("Multiplication")
    n = float(input("Enter the number: "))
    t = 0 //Total number enter
    ans = 1
    while n != 0:
        ans = ans * n
        t+=1
        n = float(input("Enter another number (0 to calculate): "))
    return [ans,t]
def average():
    an = []
    an = addition()
    t = an[1]
    a = an[0]
    ans = a / t
    return [ans,t]
// main...
while True:
    list = []
    print(" My first python program!")
    print(" Simple Calculator in python by Malik Umer Farooq")
    print(" Enter 'a' for addition")
    print(" Enter 's' for substraction")
    print(" Enter 'm' for multiplication")
    print(" Enter 'v' for average")
    print(" Enter 'q' for quit")
    c = input(" ")
    if c != 'q':
        if c == 'a':
            list = addition()
            print("Ans = ", list[0], " total inputs ",list[1])
        elif c == 's':
            list = subtraction()
            print("Ans = ", list[0], " total inputs ",list[1])
        elif c == 'm':
            list = multiplication()
            print("Ans = ", list[0], " total inputs ",list[1])
        elif c == 'v':
            list = average()
            print("Ans = ", list[0], " total inputs ",list[1])
        else:
            print ("Sorry, invilid character")
    else:
        break

import calendar

# Prompt user for year and month
year = int(input("Enter the year: "))
month = int(input("Enter the month: "))

# Create a calendar object
cal = calendar.monthcalendar(year, month)

# Display the calendar
print(calendar.month_name[month], year)
print("Mon  Tue  Wed  Thu  Fri  Sat  Sun")

for week in cal:
    for day in week:
        if day == 0:
            print("     ", end="")
        else:
            print(str(day).rjust(2), "  ", end="")
    print()