entering values in different columns

[Inactive User]

Hi team. I have 5 columns with numeric values..... I want to give user values in those 5 columns..... Here if I want to give value for one column the remaining columns should have the values that is coming from the input data. 

Please advise

[Inactive User]

user want to give values for ABCD columns but if user is giving value to A then BCD values should be original data. 

If user want to give values for AB then CD should be original data. 

[Inactive User]

user want to change all 4 columns but not at a time. 

If user give value to column A then remaining columns BCD should be original data.
If user give value to column AB then remaining columns CD should be original data.
If user give value to column ABC then remaining columns D should be original data.

Or user want to give value to D then remaining ABC should be orignial data

[Inactive User]

here is the file.

[Inactive User]

@binuacs @flying008 please help