def transposed(table):
    """Returns the transposition of the table."""
    if table == None:
        return None
    t_table = []
    for i in table:
        while len(i) > len(t_table):
            t_table.append([])
    for column in table:
        for i in range(len(column)):
            t_table[i].append(column[i])
    return t_table
