Very new to this so go easy on me.

I have an excel file with many rows of data. Column B has store numbers and column C product id Numbers. For instance B1=210, B2=210. C1=27142,and C2=27143. This means that store 210 gets product id # 27142 and 27143. Simple huh. These 2 products will repeat throughout column B with different store numbers each time. The trick is to identify all the stores that get these 2 products. Now there is another twist. B3=211,B4=211,and B5=211. C3=12345,C4=12346,C5=27142. This means that store 211 gets products 12345,12346,27142. Notice that stores 210 and 211 both get product # 27142. These 3 products will also repeat throughout the file and the trick is to find all the stores that take these combinations of products. Probably an easy solution but when ya don"t know ya just don't know. Thanks for any help you can give me.