*HEADING
 FIRST LEVEL SUBSTRUCTURE GENERATION FILE FOR psupsol1mi.inp
*NODE
1,
5,   1.
201,   , 10.
205, 1., 10.
*NGEN,NSET=A
1,5
*NGEN,NSET=B
201,205
*NSET,NSET=PR
A,B
*NFILL
A,B, 10, 20
*ELEMENT,TYPE=CPE4,ELSET=SOLID1
1,1,3, 43, 41
2,3,5, 45, 43
*SOLID SECTION,ELSET=SOLID1,MATERIAL=MAT1
1.0, 
*MATERIAL,NAME=MAT1
*ELASTIC
2.1E11, 0.3
**
**
*STEP
*SUBSTRUCTURE GENERATE,TYPE=Z1,OVERWRITE
*RETAINED NODAL DOFS, SORTED=NO
1,1,1
3,1,2
1,2,2
5,2,2
5,1,1
41, 
43, 
45, 
*END STEP