1. (2021高二下·德清开学考) 有如下VB 程序段：

s = Text1.Text: p = 0: Sum = 0

For i = 1 To Len(s)

    c = Mid(s, i, 1)

    If c >= "0" And c <= "9" Then p = p * 10 + Val(c)

    Else

        Sum = Sum + p

        p = 0

    End If

Next i

在文本框text1输入"12rtt20pK8"，程序运行后sum的值是（    ）