Data:L10n112/PD Presentation

X₆₁₇₂ X₂₅₃₆ X_11,19,12,18 X_3,11,4,10 X_9,1,10,4 X_7,15,8,14 X_13,5,14,8 X_15,17,16,20 X_19,13,20,16 X_17,9,18,12