4

Po      0.009335463685879      0.115572457654171      0.019252738396185
Po      1.735936706455911      1.602141504854467      0.261606841213480
Po      1.484060308659200      0.091204217284636      1.748049911458207
Po      0.157170981732508      1.449811475387677      1.688775694522689