Data:L11n150/PD Presentation

X₈₁₉₂ X_18,9,19,10 X₆₇₁₈ X_22,19,7,20 X_12,5,13,6 X_3,10,4,11 X_15,5,16,4 X_11,16,12,17 X_20,13,21,14 X_14,21,15,22 X_2,18,3,17