1from lcapy import R, L, C 2 3Za = R(1) 4Zb = R(1) 5Zc = R(1) 6Zd = R(1) 7Ze = R(1) 8Zf = R(1) 9 10H1 = Zf.ladder(Ze) 11 12H2 = Zf.ladder(Ze, Zd, Zc) 13 14H3 = Zf.ladder(Ze, Zd, Zc, Zb, Za) 15