Figure 22

Ordering. Linear ordering of loops: a₁ = [11, 19], b₁ = [10, 20], a₂ = [7, 37], b₂ = [5, 39], a₃ = [21, 42], b₃ = [20, 44], a₄ = [25, 47], b₄ = [24, 48], a₅ = [7, 47], b₅ = [5, 48], a₆ = [49, 57], b₆ = [48, 59], a₇ = [1, 63], b₇ = [1, 65].