Filter issues by JQL

[Nuwan]

I have list of issues which contain certain set of fields (6 custom fields) these fields can be have values only "A"or "B". the my question is how can I filter those issues if one these field have a value "A". let say for a example these custom fields are cus_field1,cus_field2,cus_field3,cus_field4,cus_field5,cus_field6 and if one these field have certain value how can I filter those issues?

[Nic Brough -Adaptavist-]

It's the obvious answer:

cus_field1 = a or cus_field2 = a or cus_field3 = a or cus_field4 = a or cus_field5 = a or cus_field6 = a or