Prepare journal entries, applying current US GAAP, to account for the following. (If no entry is required for a transaction/event, select "No Journal Entry Required" in the first account field.)

1. On January 24, 2021, a company paid $31,000 cash to purchase Bitcoins.
2. On January 26, 2021, Bitcoins price increased to $32,000 per coin.
3. On January 27, 2021, Bitcoins price dropped to $29,500 per coin.
4. On January 31, 2021, Bitcoins price recovered to $33,650 per coin.