<0> 1 -1 <1> 1 2 3 -1 <2> 1 3 -1 -2
<0> 1 -1 <1> 1 2 -1 <2> 1 2 3 -1 <3> 1 2 3 -1 -2
<0> 1 2 -1 <1> 1 2 -1 -2
<0> 2 -1 <1> 1 2 3 -1 -2