Data:L10n92/PD Presentation

X₈₁₉₂ X_18,10,19,9 X_17,6,18,1 X_7,17,8,16 X_3,10,4,11 X_5,14,6,15 X_13,4,14,5 X_11,13,12,20 X_15,7,16,12 X_2,19,3,20