i = 1: j = 10
x = Int(Rnd * 50) * 2 + 1
Do While i <= j
m = (i + j) \ 2
If x = f(m) Then Exit Do
If x < f(m) Then
j = m - 1
Else
i = m + 1
s = s + Str(m)
Loop
数组元素f(1)到f(10)的值依次为:3,6,9,11,18,20,25,39,76,98,该程序运行后,s的值不可能的是( )