Eight people, five from company A and three from company B, play in an office golf tournament consisting of one round. The number of strokes they take to complete the round are as follows:
Company A= (81) ( 70) (77) ( 77) ( 74)
Company B:=(70) (77) (67)
Calculate the rank sum for the Company A sample, where rank 1 is assigned to the lowest score for the round.