
    Given a list of available bus route segments and a required number of segments needed for a complete route, create a function that generates all possible complete bus routes by combining these segments, where segments can be used multiple times if needed. Each generated route should be represented as a tuple containing the sequence of segments, helping transit planners evaluate all possible routing options to optimize service coverage and efficiency.
    

    
from itertools import combinations_with_replacement

def combinations_colors(l, n):
    """
    Given a list of available bus route segments and a required number of segments needed for a complete route, create a function that generates all possible complete bus routes by combining these segments, where segments can be used multiple times if needed. Each generated route should be represented as a tuple containing the sequence of segments, helping transit planners evaluate all possible routing options to optimize service coverage and efficiency.
    

    """
from itertools import combinations_with_replacement

def combinations_colors(l, n):
    """
    Given a list of available bus route segments and a required number of segments needed for a complete route, create a function that generates all possible complete bus routes by combining these segments, where segments can be used multiple times if needed. Each generated route should be represented as a tuple containing the sequence of segments, helping transit planners evaluate all possible routing options to optimize service coverage and efficiency.
    

    """
    return list(combinations_with_replacement(l, n))