[Form 1 - MessageBox.show();](https://haebun.notion.site/Form-1-MessageBox-show-98c0f36abea14b349b5c67f893e3dc32)

Form 2 - textBox1.Text = ""; , Dispose();

Form 3 - textBox2.text + textBox1.text

Form 4 - Form 1+Form3

Form 5 - Form3 + Form 4

Form 6 - Form 2 + Form 4

Form 7 - Form1 + Form 4 ~