1vars a;[a^2];
2vars b;[b^2];
3vars c;[c^2];
4
5vars ; [1];
6
7vars a;[a^3];
8vars b;[b^4];
9vars c;[c^5];
10
11vars ; [1];
12
13vars a; [a];
14vars a,b;[a];
15vars b,a;[a];
16vars b; [b];
17vars c; [c];
18
19vars ; [1];
20vars a; [1];
21vars b; [1];
22vars a,b; [1];
23vars b,c; [1];
24
25