Data:10 32/PD Presentation

X₁₄₂₅ X_3,12,4,13 X_5,14,6,15 X_15,20,16,1 X_7,17,8,16 X_19,7,20,6 X_9,19,10,18 X_17,9,18,8 X_13,10,14,11 X_11,2,12,3