Data:9 47/PD Presentation

X₆₂₇₁ X_16,8,17,7 X₈₃₉₄ X_2,15,3,16 X_14,9,15,10 X_10,6,11,5 X_4,14,5,13 X_11,1,12,18 X_17,13,18,12