class YoungTableau:
    """
    Simple class for young tableaux.
    Can be easily converted to Sage
    tableauxs for more comprehensive
    computations:

    import sage.combinat.tableau.Tableau as SageTableau

    t = YoungTableau([[1,2,3],[1,2]])
    SageTableau(t)
    """

class YoungDiagram:
    """
    Simple class for young diagrams
    """