1-key: LEFT PINKY
2-key: LEFT RING
3-key: LEFT MIDDLE
4-key: LEFT POINTER
5-key: LEFT POINTER
6-key: LEFT OR RIGHT POINTER (pick one and stick to it)
7-key: RIGHT POINTER
8-key: RIGHT MIDDLE
9-key: RIGHT RING
0-key: RIGHT RING OR RIGHT PINKY (pick one and stick to it)