'''Question: 
Write a Python program to check whether a specified value is contained in a group of values.
'''

# Python code: 

def is_group_member(group_data, n):

    for value in group_data:

        if n == value:

            return True

    return False

print(is_group_member([1, 5, 8, 3], 3))

print(is_group_member([5, 8, 3], -1))



'''Output sample: 
True                                                                                                          

False

'''