from typing import List


def make_xy_column(column: List):
    """Add x, y in last column name.

    Args:
        column (list): Column name.
    Returns:
        A list contain column name with x and y at last.
    """
    xy_column = []
    for col_name in column:
        xy_column.append(col_name + '_x')
        xy_column.append(col_name + '_y')

    return xy_column