| a |
| 1+a |
| b |
| 1+b |
| a+b |
| 1+a+b |
| a |
| 1+a |
| b |
| 1+b |
| a+b |
| 1+a+b |
| a |
| 1+a+b |
| b |
| 1+a+b |
| a |
| 1+a |
| a |
| 1+a+b |
| b |
| 1+a+b |
| b |
| 1+b |
| a(1+a+b-1-a) |
| (1+a)(1+a+b) |
| b(1+b-1-a-b) |
| (1+a+b)(1+b) |
| ab |
| 1+a |
| ab |
| 1+b |
| a |
| 1+a |
| b |
| 1+b |
| a+b |
| 1+a+b |
| a |
| 1+a+b |
| b |
| 1+a+b |
| a |
| 1+a |
| a |
| 1+a+b |
| b |
| 1+a+b |
| b |
| 1+b |
| a(1+a+b-1-a) |
| (1+a)(1+a+b) |
| b(1+b-1-a-b) |
| (1+a+b)(1+b) |
| ab |
| 1+a |
| ab |
| 1+b |