import pandas as pd

january = pd.DataFrame(
    {
        "order_id": ["A100", "A101"],
        "region": ["EMEA", "APAC"],
        "total": [125.0, 98.5],
    }
)

february = pd.DataFrame(
    {
        "order_id": ["A102", "A103"],
        "region": ["EMEA", "AMER"],
        "total": [143.0, 87.0],
    }
)