Data:L10n9/PD Presentation

X₆₁₇₂ X_16,7,17,8 X_4,17,1,18 X_9,14,10,15 X₈₄₉₃ X_5,11,6,10 X_11,5,12,20 X_13,19,14,18 X_19,13,20,12 X_2,16,3,15