1) + =
2) - =
3) + =
4) - =
5) - = - =
6) + = + =
7) + = =
8) - = - =
9) = - =
10) =
11) = =
12) = = =
1) + =
2) - =
3) + =
4) - =
5) - = - =
6) + = + =
7) + = =
8) - = - =
9) = - =
10) =
11) = =
12) = = =