The total berth time for a vessel can be reduced through a reduction（）.

A.of working gangs

B.of idle time

C.in productivity of the working shifts

D.of working hours each working day

下列程序的功能是求33⁶的个位和十位数的值，填空补充程序。
Private Sub Command1 Click()
n=1
For i=1 To 6
n=n*33
n=n Mod 100
Next i
m= 【12】
n= 【13】
Print"十位数是”；n；”个位数是”；m
End Sub