Data:L10n16/PD Presentation

X₆₁₇₂ X_18,7,19,8 X_4,19,1,20 X_9,14,10,15 X₈₄₉₃ X_12,5,13,6 X_20,13,5,14 X_11,16,12,17 X_15,10,16,11 X_2,18,3,17