Data:L11n437/PD Presentation

X₈₁₉₂ X_12,3,13,4 X_13,20,14,21 X_9,18,10,19 X_21,10,22,11 X_19,14,20,7 X_5,17,6,16 X_17,22,18,15 X₂₇₃₈ X_4,11,5,12 X_15,1,16,6