Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Hand | 1 credit | 2 credits | 3 credits | 4 credits | 5 credits |
| --- | --- | --- | --- | --- | --- |
| Royal flush | 250.0 | 500.0 | 750.0 | 1000.0 | 4000* |
| Straight flush | 60.0 | 120.0 | 180.0 | 240.0 | 400 |
| Four aces | 400.0 | 800.0 | 1200.0 | 1600.0 | 2000 |
| Four of a kind, 2-4 | 100.0 | 200.0 | 300.0 | 400.0 | 500 |
| Four of a kind, 5-K | 50.0 | 100.0 | 150.0 | 200.0 | 250 |
| Full house | 8.0 | 16.0 | 24.0 | 32.0 | 40 |
| Flush | 5.0 | 10.0 | 15.0 | 20.0 | 25 |
| Straight | 4.0 | 8.0 | 12.0 | 16.0 | 20 |
| Three of a kind | 3.0 | 6.0 | 9.0 | 12.0 | 15 |
| Two pair | 1.0 | 2.0 | 3.0 | 4.0 | 5 |
| Jacks or better | 1.0 | 2.0 | 3.0 | 4.0 | 5 |
Question:
What is the hand for 4 credits is 1600?
Answer:
Four aces