765.8 4- 18,8 749 , 8 ; + 11 , 4 , 0 748.2 749.4 749.8 746 9 746.4 751,1 748.8 750.9 746 3 745 0 745.3 744.6 739.7 748.8 7484 748 7 763 6 753.3 755.4 756 8 SO.