R1 2 0 R1
L1 3 0 L1
C2 3 0 C2
V1 4 0 step
E1 2 3 3 0 x_1 0
C1 3 5 C1
G1 2 6 3 0 x_1
R2 5 4 R2
R3 5 6 R3