save state 1;
compare{3.1}{2.1} translate rotate;
delay 2;
compare{3.1}{4.1} translate rotate;
delay 2;
select {1 and 4.1} or {2 and 4.1};
display add selected;
select {1 and 3.1} or {2 and 3.1};
display remove selected;
delay 1;
compare{4.1}{5.1} translate rotate;
delay 2;
compare{3.1}{6.1} translate rotate;
delay 2;
restore state 1