def get_margin(length):
    """Add enough tabs to align in two columns"""
    if length > 23:
        margin_left = "\t"
        chars = 1
    elif length > 15:
        margin_left = "\t\t"
        chars = 2
    elif length > 7:
        margin_left = "\t\t\t"
        chars = 3
    else:
        margin_left = "\t\t\t\t"
        chars = 4
    return margin_left