# from random import randint

# traffic_light = ['green', 'yellow','red']

# random_number = randint(0,2)

# def trafficLight():
#     if random_number == 0:
#         print(f'{traffic_light[0]}')
#     if random_number == 1:
#         print(f'{traffic_light[1]}')
#     if random_number == 2:
#         print(f'{traffic_light[2]}')
                    

# trafficLight()

# import random 

# colors = ['red', 'green', 'yelllow']

# traffic = random.choice(colors)

# if traffic == 'red':
#     print ('stop')
# elif traffic == 'green':
#     print('go')
# else: 

# for i in range(1, 2501):
#     if i % 7 == 0 :
#         print(i)
        
# names_sort = names.sort()
        

# names = ['lila', 'shimon', 'jonathan', 'chaim', 'eliaou']

# substring = 'a'
# for name in names:
#     if substring in name:
#         print (f' {names.index(name) +1}: {name}')

# new_list=[]
# second_list =[]

# for name in names:
#     new_list.append(name)
#     for name_check in new_list:
#         if 'a' in name_check:
#             second_list.append(name_check) 

# print(new_list)


# new_list=[]
# second_list =[]

# for name in names:
#     new_list.append(name)
#     for name_check in new_list:
#         if 'a' in name_check:
#             second_list.append(name_check) 

# print(new_list)

# names_num = ['lila', 'shimon', 32 , 'jonathan', 'chaim', 2 , 'eliaou', 4]

# names = []
# num_list = []

# for item in names_num:
#     if isinstance(item, int):
#         num_list.append(item)
#     else:
#         names.append(item)


# print(num_list)
# print (names)

while 