Data:L10n90/PD Presentation

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