2.
N0 | N1 | N2 | N3 | M1a | M1b | M1c | |
T1a | Ⅰa1 | Ⅱb | Ⅲa | Ⅲb | Ⅳa | Ⅳa | Ⅳb |
T1b | Ⅰa2 | Ⅱb | Ⅲa | Ⅲb | Ⅳa | Ⅳa | Ⅳb |
T1c | Ⅰa3 | Ⅱb | Ⅲa | Ⅲb | Ⅳa | Ⅳa | Ⅳb |
T2a | Ⅰb | Ⅱb | Ⅲa | Ⅲb | Ⅳa | Ⅳa | Ⅳb |
T2b | Ⅱa | Ⅱb | Ⅲa | Ⅲb | Ⅳa | Ⅳa | Ⅳb |
T3 | Ⅱb | Ⅲa | Ⅲb | Ⅲc | Ⅳa | Ⅳa | Ⅳb |
T4 | Ⅲa | Ⅲa | Ⅲb | Ⅲc | Ⅳa | Ⅳa | Ⅳb |