def histogram(data, n, b, h):
    # data is a list
    # n is an integer
    # b and h are floats
    
    # Write your code here

    # return the variable storing the histogram
    # Output should be a list

    pass


def addressbook(name_to_phone, name_to_address):
    #name_to_phone and name_to_address are both dictionaries
    
    # Write your code here

    # return the variable storing address_to_all
    # Output should be a dictionary
    
    pass

def histogram(data, n, b, h):
    # data is a list
    # n is an integer
    # b and h are floats
    
    # Write your code here

    # return the variable storing the histogram
    # Output should be a list

    pass


def addressbook(name_to_phone, name_to_address):
    #name_to_phone and name_to_address are both dictionaries
    
    # Write your code here

    # return the variable storing address_to_all
    # Output should be a dictionary
    
    pass

# data is a list # n is an integer # b and h are floats # Write your code here # return the variable storing the histogram # Output should be a list #name_to_phone and name_to_address are both dictionaries # Write your code here # return the variable storing address_to_all # Output should be a dictionary