structure palicje
plane
joints 5
members 7
reactions 4
loads 1

coordinates
1	 0.0	   0.0
2     1000.0	   0.0
3     2000.0	1000.0
4     1000.0	1000.0
5	 0.0	1000.0

incidences
1     3    4	4e6
2     2    3	4e6
3     2    4	4e6
4     1    2	4e6
5     1    4	4e6
6     4    5	4e6
7     1    5	4e6

forces
3     -1000.0	0.0

supports
1 x
1 y
2 x
2 y

solve
