i=1
Do While i<=5
If i=0 Or a(i-1)<=a(i) Then
i=i+1
Else
t=a(i) : a(i)=a(i-1) : a(i-1)=t
i=i-1
End If
Loop
数组元素a(0)到a(5)依次为:“0,61,22,43,89,27”,经过该程序段处理后,数组元素a(4)的值为( )