Private Sub Command1_Click()

Dim a As Integer, b As Integer, c As Integer

a = Val(text1.Text)

b = Val(text2.Text)

c = (a + b + Abs(a - b)) \ 3

Text3.Text = Str(c)

End Sub

运行该程序，分别在文本框Text1、Text2中输入5、9，单击命令按钮Command1后，文本框Text3中显示的内容是（   ）

x=6

y=2

Print x+y

a=a-b

a=a*b

n=int(input())

{#blank#}1{#/blank#}

for i in range(n+1):

    flag=False

    if i%7==0:

        flag=True

    m=i

    while {#blank#}2{#/blank#}:

        if m%10==7:

            flag=True

        m//=10

    if {#blank#}3{#/blank#}:

        sum=sum+i*i

print(sum)