Network[{Node[1, NodePosition -> {164.255722, 135.206696}], Node[2, NodePosition -> {74.59655800000001, 83.441879}], Node[3, NodePosition -> {164.255722, 238.736176}], Node[4, NodePosition -> {253.914948, 83.44191}], Arc[{1, 2}, ArcCircleHeight -> 0., ArcLoopClockwise -> False, ArcLoopAngle -> 3.141592653589793, ArcLoopSize -> 0.], Arc[{2, 2}, ArcCircleHeight -> -1., ArcLoopClockwise -> True, ArcLoopAngle -> -2.617997346410207, ArcLoopSize -> 60.66067900000001], Arc[{3, 1}, ArcCircleHeight -> 0., ArcLoopClockwise -> False, ArcLoopAngle -> 3.141592653589793, ArcLoopSize -> 0.], Arc[{3, 3}, ArcCircleHeight -> -1., ArcLoopClockwise -> True, ArcLoopAngle -> 1.570792653589793, ArcLoopSize -> 60.66067900000001], Arc[{1, 4}, ArcCircleHeight -> 0., ArcLoopClockwise -> False, ArcLoopAngle -> 3.141592653589793, ArcLoopSize -> 0.], Arc[{4, 4}, ArcCircleHeight -> -1., ArcLoopClockwise -> True, ArcLoopAngle -> -0.5235973464102069, ArcLoopSize -> 60.66067900000001]}, ArcArrow -> False, ArcArrowAngle -> 0.4, ArcArrowColor -> GrayLevel[0.], ArcArrowFlare -> 0.3, ArcArrowPosition -> 1., ArcArrowSize -> 17., ArcBezierPath -> {{-0.333333, 0.}, {0.333333, 0.}}, ArcColor -> GrayLevel[0.], ArcFlipped -> False, ArcLabel -> "", ArcLabelColor -> GrayLevel[0], ArcLabelDistance -> 0., ArcLabelPosition -> 0., ArcLabelSide -> Right, ArcLoopBezierPath -> {{1.333333, -1.333333}, {-1.333333, -1.333333}}, ArcLoopStyle -> Circle, ArcStyle -> Line, ArcThickness -> 1., NodeAnnulusRatio -> 0.2, NodeColor -> GrayLevel[0.], NodeLabel -> None, NodeLabelAngle -> 0.013578, NodeLabelColor -> GrayLevel[0], NodeLabelDistance -> 0., NodeSize -> 3., NodeStyle -> Disk, PlotRange -> {{0., 325.}, {330., 5.}}, ArcLabelFont :> $DefaultFont, NodeLabelFont :> $DefaultFont]